Rosemount Incus HART Field Device Owner's manual

Brand: Rosemount

Model: Incus HART Field Device

Type: Owner's manual

Rosemount Incus HART Field Device

The Rosemount Incus HART Field Device is a versatile and powerful tool for monitoring and controlling industrial processes. With its advanced HART® communication capabilities, the Incus provides real-time access to critical process data, enabling users to make informed decisions and optimize their operations.

Key features of the Incus HART Field Device include:

HART® Communication Protocol: The Incus supports the industry-standard HART protocol, allowing for seamless integration with HART-compatible host systems.
Two-Wire Operation: The Incus operates on a two-wire loop, making it easy to install and maintain, even in remote locations.

Rosemount Incus HART Field Device

Key features of the Incus HART Field Device include:

HART® Communication Protocol: The Incus supports the industry-standard HART protocol, allowing for seamless integration with HART-compatible host systems.
Two-Wire Operation: The Incus operates on a two-wire loop, making it easy to install and maintain, even in remote locations.

Manual Supplement

00809-0200-3003, Rev AA

December 2018

Incus HART

Field Device Specification

Contents

Chapter 1 Introduction.................................................................................................................. 5

1.1 Scope............................................................................................................................................... 5

1.2 Purpose............................................................................................................................................ 5

1.3 Who should use this document?.......................................................................................................5

1.4 Abbreviations and definitions........................................................................................................... 5

1.5 References....................................................................................................................................... 5

Chapter 2 Device Identification...................................................................................................... 7

Chapter 3 Product Overview.......................................................................................................... 9

Chapter 4 Product Interfaces........................................................................................................11

4.1 Process interface............................................................................................................................ 11

4.2 Host interface.................................................................................................................................11

4.3 Local interfaces, jumpers, and switches.......................................................................................... 12

Chapter 5 Device Variables...........................................................................................................13

Chapter 6 Dynamic Variables....................................................................................................... 15

Chapter 7 Status Information....................................................................................................... 17

7.1 Device status..................................................................................................................................17

7.2 Extended device status...................................................................................................................17

7.3 Additional device status (command 48)......................................................................................... 18

Chapter 8 Universal Commands................................................................................................... 21

Chapter 9 Common Practice Grounds...........................................................................................23

9.1 Supported commands....................................................................................................................23

9.2 Burst mode.....................................................................................................................................23

9.3 Catch device variable......................................................................................................................23

Chapter 10 Device Specific Commands...........................................................................................25

10.1 Command 134: Read alarm level.................................................................................................. 25

10.2 Command 136: Set alarm level.....................................................................................................26

10.3 Command 140: Read alarm delay.................................................................................................26

10.4 Command 142: Set alarm delay....................................................................................................27

10.5 Command 143: Read alarm latch..................................................................................................28

10.6 Command 144: Set alarm latch.................................................................................................... 29

10.7 Command 145: Read operating mode..........................................................................................29

10.8 Command 147: Read heater enable..............................................................................................30

10.9 Command 161: Set test current....................................................................................................31

Chapter 11 Performance................................................................................................................ 33

11.1 Sampling rates............................................................................................................................. 33

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11.2 Power-up......................................................................................................................................33

11.3 Reset............................................................................................................................................ 33

11.4 Self-test........................................................................................................................................33

11.5 Command response times (TTO)..................................................................................................33

11.6 Busy delayed response................................................................................................................. 34

11.7 Long messages.............................................................................................................................34

11.8 Non-volatile memory................................................................................................................... 34

11.9 Modes.......................................................................................................................................... 34

11.10 Write protection.........................................................................................................................34

11.11 Damping.................................................................................................................................... 34

Appendix A Capability Checklist......................................................................................................35

Appendix B Default Configuration.................................................................................................. 37

Appendix C Operation with WirelessHART

Adapters.....................................................................39

C.1 Two-wire (loop powered) WirelessHART

adapters.........................................................................39

C.2 Three-wire Ex d/Explosion Proof certified WirelessHART

adapters................................................. 39

Appendix D Customer Level and Service Level HART

Device-Specific Commands........................... 41

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1 Introduction

1.1 Scope

This document describes the function, performance, and operating procedures for the

HART

communication features provided on the Emerson

™

Incus.

This document specifies all the device specific features and documents HART protocol

implementation details (e.g., engineering unit codes supported). The functionality of this

field device is described sufficiently to allow its proper application in a process monitoring

application and its complete support in HART capable host applications.

1.2 Purpose

This specification is intended to be used with other documentation and provides a

description of this Field Device from a HART

Communication perspective.

1.3 Who should use this document?

This document is intended to be a technical reference for HART

capable host application

developers, system integrators, and knowledgeable end users. It also provides functional

specifications (e.g., commands, enumerations, and performance requirements) used

during Field Device installation, maintenance, and testing. This document assumes that

the reader is familiar with HART protocol requirements and terminology and their impact

on safety systems.

1.4 Abbreviations and definitions

Table 1-1: Abbreviations Used within this Document

Abbreviation Meaning

EEPROM Electrically-erasable read-only memory

FSK Frequency-shift keying (a method of

modulation)

HCF HART

Communication Foundation

1.5 References

Table 1-2: Reference Document List

Document Revision Document number

HART

- FSK Physical Layer Spec 8.1 HCF_SPEC-54

HART - Data Link Layer Specification 8.2 HCF_SPEC-81

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Table 1-2: Reference Document List (continued)

Document Revision Document number

HART - Command Summary

Specification

9.0 HCF_SPEC-99

HART- Universal Command

Specification

7.1 HCF_SPEC-127

HART- Common Tables 21.0 HCF_SPEC-183

HART - Common Response Code

Specification

6.0 HCF_SPEC-307

Incus Reference Manual 7.0 MAN-INCUS-rev.7

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2 Device Identification

Table 2-1: Device Identification

Manufacturer's name Emerson

™

Manufacturer ID code 6072

Model name(s) Incus

Device type code E1E6

Device revision 1 and 2 (see text)

HART

Protocol revision number 7.0

Number of device variables 1

Physical layers supported FSK

Physical device category Current output device

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3 Product Overview

Incus is an ultrasonic gas leak detector which detects the airborne ultrasound generated

from pressurised gas leaks.

Airborne ultrasound is generated when gas moves from a high pressure area to a low

pressure area with a ratio ≥ 1.8: 1 upstream to downstream pressure. The intensity of

airborne ultrasound generated by a leak is due to a number of factors, including but not

limited to, gas pressure, leak size and gas temperature. The use of Incus as a leak detector

is only recommended for pipelines running at pressures > 2 bar.

Incus uses four individual piezo-ceramic sensing heads, mounted using Emerson’s

™

patent-pending floating-crystal design. The sensor design makes the sensing heads

virtually indestructible and totally immune to temperature, moisture, and other

contaminants found in hazardous industry. Incus has a wide dynamic range which

facilitates use in a variety of applications from laboratories to turbine houses. The multi-

stage amplifier ensures a linear output across the entire detector range without drop-off

at each end of range.

Incus is not designed to detect specific gas types or to measure percentage LEL or ppm

concentration level, but instead responds instantaneously to a wide range of leak sizes

while being unaffected by even the most extreme weather conditions. Incus is rated to

IP66 / IP67 to withstand harsh environments and continues to work during temporary

immersion.

Incus uses a continuous electronic background monitoring test feature to ensure

complete functionality. This testing is invisible to the user and does not interrupt the

normal detection operation of the sensor. Incus also has an optional heating facility which

enables the internal electronics to be kept within normal parameters with external

temperatures as low as -67 °F (-55 °C). (Even lower temperature operation is possible,

although cold startup cannot be guaranteed). The heater uses a proportional-control

scheme, meaning the unit can be kept within an optimal operating temperature range

while minimising the additional current draw from the incoming +24 V supply.

Incus has complete customer flexibility. The current-loop output can be factory configured

as source or sink, and the scale-factor can be configured to mimic other vendor’s detector

outputs. Also provided is a multi-drop RS485 diagnostic port using an Emerson-

proprietary protocol. Incus also features infrared communication, using the same

proprietary protocol, which allows parameter interrogation and setting ability from up to

8M range using a proprietary USB-IR interface adapter. This allows non-contact setup of

parameters after installation.

Incus with software version 2.6 onwards has HART

communication enabled by default.

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4 Product Interfaces

4.1 Process interface

4.1.1 Sensor input channels

The Incus uses four floating piezo ceramic heads to detect a pressurised gas leak.

Information about the sensor channels can be found in the Incus Reference Manual.

4.2 Host interface

4.2.1 Analog output channel (current loop)

The Incus is wired as a three wire sensor using the terminals marked 0 V, +24 V, and mA

inside the terminal compartment. Detailed connection details can be found in the Incus

Reference Manual. The current-loop output is factory configured as either source or sink

mode (default is source). If the Incus is configured for source mode the current loop is

connected between mA (+) and 0 V (-) terminals. If using a sink mode Incus, the current

loop is connected between +24 V (+) and mA (-).

This current-loop output is configured to be proportional to the primary variable (dB SPL);

the specific 4-20 mA signal level and scale-factor details can be found in the Incus

Reference Manual. The scale factor varies according to the operating mode selected. The

manual also describes the device malfunction indications that are available, signalled by

specific DC current levels below 4 mA viz. 2 mA, 1 mA, and 0 mA. See Operation with

WirelessHART

Adapters for implications of using external WirelessHART

adapters with

this signalling scheme.

HART communication is supported on this loop. In order for HART to operate successfully,

the loop should be terminated with a resistor in the range of 100 – 500 ohms, generally in

the control room.

Note

The Incus current-loop output operates in Active mode, meaning the power to the loop is

provided by the sensor itself.

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4.2.2 Relay outputs

The Incus has configurable relay outputs used to indicate a device fault and alarm

condition. These relay configurations are not accessible through the HART

interface.

Refer to the Incus Reference Manual for more information.

4.3 Local interfaces, jumpers, and switches

4.3.1 Local controls and displays

The Incus has a seven segment display to relay information back to the user. The displayed

information cannot be controlled by the HART

interface. More information is contained

in the Incus Reference Manual.

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5 Device Variables

There are no device variables available to the user.

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6 Dynamic Variables

Table 6-1: HART

Variables Supported by the Incus

HART variable Description Units

Primary variable (PV) The dB reading seen on the main

sensor display and reported via the

4-20 mA current-loop, being the

sound pressure level in decibels (dB).

dB (240 unit code

(1)

)

Secondary variable (SV)

(2)

The temperature, in degrees Celsius,

or the internal sensor electronics.

°C

Tertiary variable (TV)

(2)

The temperature, in degrees Celsius,

of the internal heater electronics.

Reports NaN if heater not fitted

(optional).

°C

(1) The current Incus Device Description (available from Emerson

™

) interprets the "manufacturer-specific unit code '240'" to

represent the symbol "dB".

(2) SV and TV are only supported for the Device Revision 2 onwards.

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7 Status Information

7.1 Device status

The device status byte, which is contained in the second data byte of the Incus reply to any

HART

command, is defined below.

Table 7-1: Device Status Bits to be Included into Each Incus HART Response

Bit mask Definition Incus conditions to be set

0x80 (bit 7) Device malfunction Set on detection of a device

malfunction.

0x40 (bit 6) Configuration changed Set whenever the unit configuration is

changed.

0x20 (bit 5) Cold start Set, for one transaction only, for each

master when device is powered up.

0x10 (bit 4) More status bits available Set whenever a bit detailed in the

additional device status is set

(alarm

(1)

, malfunctions).

0x08 (bit 3) Loop current fixed Set when loop current is parked

(3.5 mA)

(1)

0x04 (bit 2) Loop current saturated Not used by Incus.

0x02 (bit 1) Primary variable out of limits Not used by Incus.

0x01 (bit 0) Non-primary variable out of limits Not used by Incus.

(1) Device Revision 2 onwards

7.2 Extended device status

The extended device status byte, contained in byte 6 of command 48 response data byte,

contains the following bitwise status information.

Table 7-2: Extended Device Status Bits in Byte 6 of the Response Data Bytes for Command 48

Bit mask Definition Incus conditions to be set

0x80 (bit 7) Undefined N/A

0x40 (bit 6) Undefined N/A

0x20 (bit 5) Undefined N/A

0x10 (bit 4) Undefined N/A

0x08 (bit 3) Undefined N/A

0x04 (bit 2) Critical power failure Not used by the Incus.

0x02 (bit 1) Device variable alert Set if the device is in alarm condition.

0x01 (bit 0) Maintenance required Not used by the Incus.

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7.3 Additional device status (command 48)

This is the response returned by command 48. (Command 48 will normally be executed by

a host if bit 4 of the field device status byte is set in any command response, but can only

be executed independently).

Table 7-3: Additional Device Status (x = Undefined)

Byte Bit mask Incus condition to be set

0 0000 0001 Alarm active

0 0000 0010 Cleaning active - obsolete

0 0000 0100 Production test 10 minute counteractive

0 0000 1000 Low 24 V supply

0 0001 0000 High 24 V supply

0 0010 0000 Low 12 V supply

0 0100 0000 High 12 V supply

0 1000 0000 Blown warranty fuse

1 0000 0001 Low gain ping error head 0

1 0000 0010 Low gain ping error head 1

1 0000 0100 Low gain ping error head 2

1 0000 1000 Low gain ping error head 3

1 0001 0000 High gain ping error head 0

1 0010 0000 Ping order error

1 0100 0000 High/low gain comparison on Head 0

1 1000 0000 Over temperature/case temp sensor fault

2 0000 0001 Obsolete

2 0000 0010 Obsolete

2 0000 0100 Obsolete

2 0000 1000 Obsolete

2 0001 0000 Obsolete

2 0010 0000 Obsolete

2 0100 0000 Undefined

2 1000 0000 Undefined

3 xxxx xxxx Undefined

4 xxxx xxxx Undefined

5 xxxx xxxx Undefined

6 xxxx xx1x Alarm 1: Monitored sound level is in excess of the present

alarm threshold.

7 xxxx xxxx Undefined

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Table 7-3: Additional Device Status (x = Undefined) (continued)

Byte Bit mask Incus condition to be set

8 0000 0001 Undefined

8 0000 0010 Undefined

8 0000 0100 Undefined

8 0000 1000 Undefined

8 0001 0000 Voltage error

8 0010 0000 Temperature error

8 0100 0000 Cleaning error - obsolete

8 1000 0000 Undefined

9-24 0000 0000 Unused: Message truncated after bye 13 for HART

5, 6,

and 7 cross-compatibility.

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Rosemount Incus HART Field Device Owner's manual

Brand: Rosemount

Model: Incus HART Field Device

Type: Owner's manual

Rosemount Incus HART Field Device

Key features of the Incus HART Field Device include:

HART® Communication Protocol: The Incus supports the industry-standard HART protocol, allowing for seamless integration with HART-compatible host systems.
Two-Wire Operation: The Incus operates on a two-wire loop, making it easy to install and maintain, even in remote locations.

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Rosemount Incus HART Field Device Owner's manual

Rosemount Incus HART Field Device Owner's manual

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