Siemens Drums 505-2557 User manual

SIMA

TIC 505

505–2557 Sixteen Channel Isolated

R

TD Input Module

Installation

and Operation Guide

Order Number: PPX:505–8134–1

Manual Assembly Number: 2807060–0001

Original Edition

!

DANGER

indicates an imminently hazardous situation that, if not avoided, will

result in death or serious injury

.

DANGER is limited to the most extreme situations.

!

WARNING

W

ARNING indicates a potentially hazardous situation that, if not avoided, could

result in death or serious injury, and/or property damage.

!

CAUTION

CAUTION indicates a potentially hazardous situation that, if not avoided, could

result in minor or moderate injury, and/or damage to property

.

CAUTION is also used for property-damage-only accidents.

Copyright

1998 by Siemens Energy & Automation, Inc.

Reproduction,

transmission, or use of this document or contents is not permitted without express consent of

Siemens Energy &

Automation, Inc. All rights, including rights created by patent grant or registration of a utility model or design, are

reserved.

Since Siemens Energy & Automation, Inc., does not possess full access to data concerning all of the uses and applications of

customer’

s products, we do not assume responsibility either for customer product design or for any infringements of patents or rights

of others which may result from our assistance.

MANUAL PUBLICA

TION HISTOR

Y

SIMATIC 505–2557 R

TD Input Module Installation and Operation Guide

Or

der Manual Number: PPX:505–8134–1

Refer to this history in all correspondence and/or discussion about this manual.

Event Date Description

Original Issue

05/98

Original Issue (2807060–0001)

LIST

OF EFFECTIVE P

AGES

Pages Description Pages Description

Cover/Copyright Original

History/Effective

Pages

Original

iii —viii

Original

1-1 — 1-7

Original

2-1 — 2-13 Original

3-1 — 3-31 Original

A-1 — A-1

Original

B-1 — B-2

Original

C-1 — C-1

Original

Contents iii

Contents

Preface

Chapter 1 Description

1.1 Operating

Modes

1-2.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Asynchronous

Operation

1-2.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Compatability

with Immediate I/O

1-2.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

100

Ohm, 10 Ohm, 120 Ohm R

TDs, or Millivolt Inputs

1-2.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Digital

W

or

d Map

1-3.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.2 RTD

Input to Digital Conversion

1-4.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Engineering

Units

1-4.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Scale

Units

1-4.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Effect

of Out-of-Range Input Signals

1-5.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Resolution 1-7

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 2 Installation

2.1 Installing

and Configuring the Module

2-2.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Planning

the Installation

2-2.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Calculating

the I/O Base Power Budget

2-2.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Unpacking

the Module

2-2.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Configuring

the Module

2-3.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Selecting Temperatur

e or Millivolt Input

2-4.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Selecting

2 and 3 W

ir

e or 4 W

ir

e Operation

2-4.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Selecting

10 Ohm R

TD Inputs

2-4.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Selecting

PLC Login Mode

2-4.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Selecting

Digital Filtering

2-4.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Selecting

Degr

ees Celsius or Fahr

enheit 2-5.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Selecting

Data Scaling

2-5.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Inserting

the Module Into the I/O Base

2-7.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.2 Wiring

the Input Connectors

2-8.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Connecting

the Shield W

iring 2-11.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Checking

Module Operation

2-13.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 3 Advanced Function Programming

3.1 Advanced

Softwar

e Functions

3-2.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Introduction 3-2

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Overview

of the Advanced Functions

3-2.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Setting

the Module Configuration Jumper

3-3.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Logging

the Module in the Contr

oller I/O Configuration Memory

3-4.

. . . . . . . . . . . . . . . . .

iv Contents

3.2 Internal

Register Structur

es 3-5.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Description

of the I/O Registers

3-5.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input

Registers

3-5.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Output

Registers

3-7.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Control

Registers

3-8.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Inputs 3-8

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Outputs 3-10

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Loading

Data into the SIMA

TIC 505–2557 Module 3-11.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.3 Loading

Pr

ograms into the I/O Module

3-15.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.4 Timing

Considerations

3-18.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Timing

Constraints When Using Advanced Functions

3-18.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.5 Additional

Infor

mation about Each Function

3-19.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Default Values 3-19.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Degrees

Centigrade or Degr

ees Fahr

enheit 3-20.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Scaling 3-20

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Alarm

Setpoints

3-20.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Digital

Filtering

3-21.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Averaging 3-22

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Peak

and V

alley Hold

3-22.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Peak

and V

alley Hold Reset

3-23.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Flag

Bits

3-23.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Advanced

Function Pr

ecedence 3-24.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.6 Troubleshooting 3-25

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Troubleshooting

the System

3-25.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.7 I/O

Register Quick Refer

ence 3-27.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.8 V

or K Memory Configuration T

ables 3-28.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.9 Addressing

W

orksheet 3-30.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.10 Items

Unique to the SIMA

TIC 505–2557 Module

3-31.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Appendix A Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Appendix B Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

Appendix C Jumper Settings Log Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1

Contents v

List of Figures

1-1Word

Input to the PLC fr

om the Module

1-3.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-2Example

Change Input Level

1-4.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-3Effectof V

oltage Input - 100 Ohm Platinum

1-5.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-4Effect

of V

oltage Input - 120 Ohm Nickel

1-5.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-5Effect

of V

oltage Input - 10 Ohm Copper

1-6.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-6Effect

of V

oltage Input - Millivolts

1-6.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-7Input

Resolution

1-7.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-1Factory

Configuration Jumper Settings

2-5.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-2Configuration

Jumper Locations

2-6.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-3Copper

W

ir

e T

able at 25 Degr

ees Celsius

2-8.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-4Press

In W

iring Connector

2-9.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-5Wiring

Diagram for 2, 3, or 4 W

ir

e R

TD 2-10.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-6Wiring

Diagram for Millivolt Measur

ements 2-11.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-7Cable

Gr

ounding 2-12.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-8Example

I/O Configuration Chart

2-13.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-1Configuring

the SIMA

TIC 505–2557 Module for Advanced Featur

es 3-3.

. . . . . . . . . . . . . . . . . .

3-2SIMATIC

505–2557 I/O Configuration Chart

3-4.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-3Input

Flag Bits

3-6.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-4Discrete

Handshake Inputs

3-9.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-5Data T

ransfer Contr

ol Bits

3-10.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-6Data

Loading Pr

ocess 3-11.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-7Sample

Low and High Alar

m Setpoints

3-12.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-8The

Module_Ready Bit

3-12

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-9Identifying

the Data Being T

ransferred 3-13.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-10The

Data_Ready Bit

3-13.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-11Enabling

the Functions Loaded

3-14.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-12Loading

the Enable Bits

3-14.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-13Startup

Relay Ladder Logic

3-16.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-14Peak/Valley T

ruth T

able 3-22.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-15Peak/Valley

Reset T

ruth T

able 3-23.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-16Mapping

Bit Position to Channel Number

3-23.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-17I/O

Register Quick Refer

ence 3-27.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-18Open R

TD Status Bits

3-31.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A-1Troubleshooting

Matrix

A-1.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

C-1Jumper

Settings Log Sheet

C-1.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

vi Contents

List

of T

ables

3-1 Input

and Output Register Of

fsets 3-5.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-2 Input

Channel Data

3-5.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-3 Peak/Valley

Hold Input W

ords 3-6.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-4 Output

Data Registers

3-7.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-5 Function

Enable Bits

3-8.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-6 Data

Identification Bits

3-10.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-7 Timing

Over

head for Functions Enabled

3-18.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-8 Default

Function V

alues 3-19.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-9 Default

Function V

alues for SIMA

TIC 505–2557 3-19.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3-10 Troubleshooting

Flow Diagram

3-26.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

B-1 Specifications B-1

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Preface

vii

SIMATIC 505–2557 Installation and Operation Guide

Preface

This

Installation and Operation Guide provides installation and operation

instructions for the SIMA

TIC

505–2557 Sixteen Channel Isolated RTD

Input Module for SIMA

TIC 505 programmable controllers. W

e assume you

are familiar with the operation of SIMA

TIC 505 series programmable

controllers. Refer to the appropriate SIMA

TIC user documentation for

specific information on the SIMATIC 505 programmable controllers and I/O

modules.

This Installation and Operation Guide is organized as follows:

•

Chapter 1 provides a description of the module.

•

Chapter 2 covers installation and wiring.

•

Chapter 3 is a guide to troubleshooting.

•

Appendix A is a guide to troubleshooting

•

Appendix B is a table of specifications.

•

Appendix C is a log sheet for your configuration jumper settings.

505–2557

Figur

e 1

SIMA

TIC 505–2557 16-Channel R

TD Input Module

Preface

viii

SIMATIC 505–2557 Installation and Operation Guide

Additional

manuals that have relevant information include the following:

• SIMA

TIC 545/555/575 System Manual

(PPX:505–8201–x).

• SIMA

TIC 545/555/575

Programming Reference User Manual

(PPX:505–8204–x).

• SIMA

TIC 505 TISOFT2

t

User Manual

(PPX:TS505–8101–x).

Refer to material in these manuals as necessary for additional information

about programming and operating your 545/555/575 system.

Series 505

t

products have been developed with consideration of the draft

standard of the International Electrotechnical Commission Committee

proposed standard (IEC–65A/WG6) for programmable controllers (released

as IEC 1

131–2, Programmable Controllers, Part 2: Equipment

Requirements and T

ests, First Edition, 1992–09). Contact Siemens Energy

& Automation, Inc., for information about regulatory agency approvals that

have been obtained on Series 505 units.

Agency approvals are the following:

–

UL-listed (industrial control equipment)

–

CUL (Canadian UL)

–

FM (Class I, Div

. 2, Group A, B, C, D Hazardous Locations)

Generally

, products listed in this manual comply with the essential

requirements of European Community EMC Directive, number 89/336/EEC,

and carry the CE label. See the declaration of conformity included with each

CPU for a listing of specific products and compliance details.

For additional technical assistance, call the Siemens T

echnical Services

Group in Johnson City

, T

ennessee at 1-800-942-5697 or 423-461-2522, or

contact them by e-mail at

[email protected]

. For

technical assistance outside the United States, call 49-91

1-895-7000.

Related Manuals

Agency Standar

ds

Agency Appr

ovals

European

Community (CE)

Approval

Technical

Assistance

Description

1-1

SIMATIC 505–2557 Installation and Operation Guide

Chapter 1

Description

1.1 Operating

Modes

1-2.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Asynchronous

Operation

1-2.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Compatability

with Immediate I/O

1-2.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

100

Ohm, 10 Ohm, 120 Ohm R

TDs, or Millivolt Inputs

1-2.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Digital

W

or

d Map

1-3.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.2 RTD

Input to Digital Conversion

1-4.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Engineering

Units

1-4.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Scale

Units

1-4.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Effect

of Out-of-Range Input Signals

1-5.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Resolution 1-7

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Description

1-2

SIMATIC 505–2557 Installation and Operation Guide

1.1 Operating Modes

The

SIMA

TIC 505–2557 Sixteen Channel RTD Input Module is a member of

Siemens’

s family of I/O modules compatible with the SIMA

TIC 505 series

programmable controllers. The SIMA

TIC 505–2557 is designed to translate

10 Ohm copper

, 100 Ohm platinum and, 120 Ohm nickel RTDs or millivolt

input signals into scaled digital words which are then sent to the

programmable controller (PLC).

The SIMA

TIC 505–2557 RTD Input Module features built–in independent

two, three, or four lead compensation for each RTD input. Support for other

RTD types is available through special request from the factory

. For

technical assistance, contact your Siemens Energy & Automation, Inc.,

distributor or sales office.

The module operates asynchronously with respect to the PLC; a scan of the

PLC and input sampling of the module do not occur at the same time.

Instead, the module will translate all inputs in one module update (20

milliseconds maximum) and store the translated words in a buffer memory

.

The PLC retrieves the stored words from the module buffer memory at the

start of the I/O scan.

The SIMA

TIC 505–2557 has been tested and is compatible with the

Immediate read function of the SIMA

TIC 545 and 555 PLC.

Each of the module’

s 16 channels may be configured to receive either a 100

Ohm platinum RTD or a 120 Ohm nickel RTD or a 10 Ohm copper RTD

input signal (two, three or four wire) or a DC voltage signal ranging from 0

to 100 millivolts. Selection of 10 Ohm, 100 Ohm or 120 Ohm RTDs or

millivolts are made via internal switch and jumper settings.

Asynchronous

Operation

Compatability with

Immediate I/O

100 Ohm, 10 Ohm,

120 Ohm R

TDs, or

Millivolt Inputs

Description

1-3

SIMATIC 505–2557 Installation and Operation Guide

RTD

and/or millivolt signals are translated into a 14–bit digital word. Since

the PLC requires a 16–bit input word, the 14–bit value from the converter is

placed into a 16–bit word for transmittal to the PLC. As shown in the

following figure, of the two bits not used for the digital word, one is used to

show the sign of the word, while the other is used to note values which are

“overrange or underrange.”

Figure 1-1 Wor

d Input to the PLC fr

om the Module

Digital W

or

d Map

Description

1-4

SIMATIC 505–2557 Installation and Operation Guide

1.2 RTD Input to Digital Conversion

The

following equations may be used to calculate the digital word in decimal

format which will result from a particular RTD input:

RTD Mode, Digital W

ord (WX) = Degrees X 10

Millivolt Mode, Digital W

ord (WX) = Millivolts X 100

As an example, the following figure illustrates the effects of a change in

input level going from 0 degrees to 102.4 degrees in the RTD Input Mode.

Figure 1-2

Example Change Input Level

When data format is selected as SCALE the full temperature range of the

RTD is scaled as an unsigned integer from 0–32000. The following formula

may be used to calculate the scaled integer value:

Scaled Integer = (measured temp – min temp)

÷

(max temp – min temp)

×

32000

For example the scaled integer offset at 0

_

C for a 100



Pt RTD is:

Scaled Integer = 0 – (–199.8)

÷ (849 – (–199.8)) ×

32000 = 6091

Engineering Units

Scale Units

Description

1-5

SIMATIC 505–2557 Installation and Operation Guide

RTD

inputs exceeding 849.8 degrees C for 100 Ohm platinum or 260.0

degrees C for 120 Ohm nickel and 10 Ohm copper will cause the overrange

bit to be set. A maximum temperature of 849.9 degrees C for 100 Ohm

platinum or 260.1 degrees C for 120 Ohm nickel and 10 Ohm copper will be

returned for any positive overrange input.

Similarly an input below –199.8 degrees C for 100 Ohm platinum or –79.8

degrees C for 120 Ohm nickel or –100 degrees C for 10 Ohm copper will

cause the underrange bit to be set.

NOTE:

The SIMA

TIC 505–2557 uses the least significant bit (16) to indicate

an open RTD. The value of this bit is set to 1 when this condition occurs.

Figure 1-3 Ef

fect of V

oltage Input - 100 Ohm Platinum

Figure 1-4 Ef

fect of V

oltage Input - 120 Ohm Nickel

Ef

fect of

Out-of-Range Input

Signals

Description

1-6

SIMATIC 505–2557 Installation and Operation Guide

RTD Input to Digital Conversion (continued)

Figure 1-5 Effect

of V

oltage Input - 10 Ohm Copper

Millivolt inputs exceeding 103.04 millivolts will cause the overrange bit to

be set. A reading of 103.05 millivolts will be returned for any positive

overrange input.

Similarly a millivolt input below 0 millivolts will cause the underrange bit

to be set. A reading of 1 millivolt will be returned for any negative

underrange input.

Figure 1-6 Ef

fect of V

oltage Input - Millivolts

Description

1-7

SIMATIC 505–2557 Installation and Operation Guide

The

module has a resolution of approximately 0.1 degrees C, 0.2 degrees F

or exactly 0.01 millivolts.

The chart below shows the corresponding input resolution per step for each

of the input configuration modes:

Figure 1-7

Input Resolution

Resolution

Installation

2-1

SIMATIC 505–2557 Installation and Operation Guide

Chapter 2

Installation

2.1 Installing

and Configuring the Module

2-2.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Planning

the Installation

2-2.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Calculating

the I/O Base Power Budget

2-2.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Unpacking

the Module

2-2.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Configuring

the Module

2-3.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Selecting Temperatur

e or Millivolt Input

2-4.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Selecting

2 and 3 W

ir

e or 4 W

ir

e Operation

2-4.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Selecting

10 Ohm R

TD Inputs

2-4.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Selecting

PLC Login Mode

2-4.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Selecting

Digital Filtering

2-4.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Selecting

Degr

ees Celsius or Fahr

enheit 2-5.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Selecting

Data Scaling

2-5.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Inserting

the Module Into the I/O Base

2-7.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.2 Wiring

the Input Connectors

2-8.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Connecting

the Shield W

iring 2-11.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Checking

Module Operation

2-13.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation

2-2

SIMATIC 505–2557 Installation and Operation Guide

2.1 Installing and Configuring the Module

The

installation of the SIMA

TIC 505–2557 Sixteen Channel RTD Input

Module involves the following steps:

1.

Planning the installation

2.

Configuring the module

3.

Inserting the module into the I/O base

4. W

iring the module input connector

5.

Checking module operation

The steps listed above are explained in detail in the following pages.

Planning is the first step in the installation of the module. This involves

calculating the I/O base power budget and routing the input signal wiring to

minimize noise. The following sections discuss these important

considerations.

The SIMA

TIC 505–2557 requires 5 watts of +5 VDC power from the I/O

base. Use this figure to verify that the base power supply capacity is not

exceeded.

Open the shipping carton and remove the special anti–static bag which

contains the module.

!

CAUTION

Handling

Static Sensitive Devices

The components on the SIMA

TIC 505–2557 module printed circuit card can be

damaged by static electricity discharge. T

o prevent this damage, the module is

shipped in a special anti–static bag. T

ake the following precautions before re

-

moving the module from the bag, when opening the module, and when handling

the printed circuit card during configuration.

Discharge any static potential by holding the module in its anti–static bag and

touch the metal chassis of the PLC. During the configuration step, hold the

printed circuit card only by its edges. Do not touch the circuit card pin

connectors, or solder connections.

After

discharging any static build–up, remove the module from the static

bag. Do not discard the static bag. You will need it for the following

configuration procedure.

Planning the

Installation

Calculating the I/O

Base Power Budget

Unpacking the

Module

Installation

2-3

SIMATIC 505–2557 Installation and Operation Guide

The

SIMA

TIC 505–2557 must be configured for 10 Ohm copper

, 100 Ohm

platinum or 120 Ohm nickel RTDs (2, 3 or 4 wire) or millivolt range and

digital filtering/no filtering mode before wiring the input connectors and

inserting the module into the I/O base.

NOTE:

As shipped, all input channels are configured 100 Ohm platinum, 3

wire RTDs, degrees Centigrade and digital filtering enabled.

Configuring the module is a two step process. Hardware jumpers are

positioned to provide proper gain and lead wire compensation for either 3

wire or 4 wire RTDs. DIP switches are provided to inform the

microprocessor the changes made to the hardware.

Changing the module input channel configuration involves the following

steps:

1.

Selecting temperature or millivolt measurement via DIP switch

2.

Selecting 3 or 4 wire compensation

3.

Selecting 100 Ohm platinum, 120 Ohm nickel or 10 Ohm copper input

mode for each channel

4.

Selecting standard login mode (16WX) or Advanced Operating Mode

5.

Selecting digital filtering or no filtering for the module

6.

Selecting degrees C or F for the module

7.

Selecting Engr units or SCALE units for module

8.

Logging the configuration jumper settings for future reference

Each of these steps is described in the following sections.

Configuring the

Module

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