ICP DAS USA I-7088 User manual

I-7088 User Manual, Rev: A1.0

1

I-7088

User Manual

Warranty

All products manufactured by ICP DAS are warranted against

defective materials for a period of one year from the date of

delivery to the original purchaser.

Warning

ICP DAS assume no liability for damages consequent to the

use of this product. ICP DAS reserves the right to change this

manual at any time without notice. The information furnished by

ICP DAS is believed to be accurate and reliable. However, no

responsibility is assumed by ICP DAS for its use, nor for any

infringements of patents or other rights of third parties resulting

from its use.

Copyright

Trademark

Names are used for identification purposes only and may be

registered trademarks of their respective companies.

Your Powerful Tools

Create New Ideas

Create New Applications

I-7000 New Features

1. Internal Self Tuner

2. Multiple Baud Rates

3. Multiple Data Formats

4. Internal Dual WatchDog

5. True Distributed Control

6. High Speed & High

Density I/O

I-7088 User Manual, Rev: A1.0

2

Table of Contents

1.

Introduction.............................................................4

1.1.

Pin Assignment...................................................6

1.2.

Specifications......................................................7

1.3.

Block Diagram.....................................................8

1.4.

Application Wiring ...............................................9

1.5.

Quick Start ........................................................10

1.6.

Default Setting...................................................11

1.7.

Configuration Tables.........................................11

2.

DCON Protocol.....................................................12

Checksum Calculation...............................................13

2.1.

%AANNTTCCFF...............................................16

2.2.

#AA ...................................................................19

2.3.

#AAN.................................................................20

2.4.

$AA2 .................................................................21

2.5.

$AA3N...............................................................23

2.6.

$AA3N(Data).....................................................24

2.7.

$AA5 .................................................................25

2.8.

$AA5VV.............................................................27

2.9.

$AA6 .................................................................28

2.10.

$AA6N...............................................................29

2.11.

$AA6NN............................................................30

2.12.

$AA7N...............................................................31

2.13.

$AAB.................................................................33

2.14.

$AABR ..............................................................34

2.15.

$AACnD............................................................35

2.16.

$AACnD(Data)..................................................36

2.17.

$AACnF.............................................................37

2.18.

$AACnF(Data)...................................................39

2.19.

$AACnM............................................................41

2.20.

$AACnMS .........................................................43

2.21.

$AACnP ............................................................45

2.22.

$AACnP(Data) ..................................................47

2.23.

$AACnT.............................................................49

2.24.

$AACnTS..........................................................51

2.25.

$AACnN............................................................53

2.26.

$AACnNS..........................................................55

2.27.

$AAF.................................................................56

I-7088 User Manual, Rev: A1.0

3

2.28.

$AAI ..................................................................57

2.29.

$AAM ................................................................58

2.30.

$AAR.................................................................59

2.31.

$AAW................................................................60

2.32.

$AAYS...............................................................61

2.33.

@AADODD.......................................................62

2.34.

@AADI..............................................................64

2.35.

@AAGN ............................................................66

2.36.

@AAPN(Data)...................................................67

2.37.

~AAD.................................................................68

2.38.

~AADVV............................................................70

2.39.

~AAO(Name) ....................................................72

2.40.

~AARD..............................................................73

2.41.

~AARDTT..........................................................74

2.42.

~**.....................................................................75

2.43.

~AA0.................................................................76

2.44.

~AA1.................................................................78

2.45.

~AA2.................................................................80

2.46.

~AA3ETT ..........................................................82

2.47.

~AAI..................................................................84

2.48.

~AATnn.............................................................86

3.

Operations Principle & Application Notes.............88

3.1

INIT* _pin Operation Principle ..........................88

3.2

PWM Operation Principle..................................89

A.

Appendix...............................................................91

A.1 INIT Mode............................................................91

A.2 Dual Watchdog Operation...................................93

A.3 Frame Ground.....................................................94

A.4 Node Information Area ........................................96

A.5 Reset Status........................................................97

I-7088 User Manual, Rev: A1.0

4

1. Introduction

The I-7088 has 8 PWM output channels and 8 counter inputs

and can be used to develop powerful and cost effective analog

control systems. PWM (Pulse width modulation) is a powerful

technique for controlling analog circuits that uses digital outputs

to generate a waveform with variant Duty Cycle (The fraction of

time that a system is in an "active" state) and frequency to control

analog circuits and can be used to control the position/speed of

motors, dim the brightness of lamps, control the speed of fans, etc.

The I-7088 will also automatically save the counter value to

EEPROM if the power supply is interrupted or lost. Refer to

Section 1.7 for details.

Features

 Automatic hardware generation of PWM outputs without

software intervention

 1Hz ~ 500KHz PWM output frequency with 0.1%~99.9%

duty cycle (Refer to Section 3.2)

 Software and hardware trigger mode for PWM output

 Individual and synchronous PWM output.

Using software trigger mode, you can set the configuration for

all PWM channels then trigger them individually or all of

them at the same time.

 Burst mode PWM operation for standby

 DI channel can be configured as either a simple digital input

channel or a hardware trigger source for the PWM output.

Software Trigger

PWM (Continuous Mode)

I-7088

MCU

DI / Hardware Trigger

PWM (Burst Mode)

I-7088 User Manual, Rev: A1.0

5

Applications

 Controlling the position/speed of motors

 Dimming the brightness of lamps

 Controlling the speed of fans

More Information

Refer to chapter 1 of the “I-7000 Bus Converter User

Manual” for more information regarding the following:

1.1 I-7000 Overview

1.2 I-7000 Related Documentation

1.3 I-7000 Common Features

1.4 I-7000 System Network Configuration

1.5 I-7000 Dimensions

I-7088 User Manual, Rev: A1.0

6

1.1. Pin Assignments

I-7088 User Manual, Rev: A1.0

7

1.2. Specifications

PWM Output

Channels 8

Type TTL, Isolated

Max. Frequency 500KHz

Duty Cycle 0.1%~99.9%

PWM Mode

Burst mode,

Continuous mode

Burst Mode Counter 1~65535 counts

Trigger Start

Hardware or

Software

ESD Protection

4 kV Contact for each

terminal and 8 kV Air

for random point

Isolation 2500 VDC

Digital Input

Channels 8

Type Sink, Isolated

ON Voltage Level +2.4V~+5V

OFF Voltage Level +1V Max.

Max. Frequency 1MHz

Max. Counts

32-bits

(4,294,967,295)

Built-in Virtual Battery Backup for Counter Value Yes

ESD Protection

4 kV Contact fo

r each

terminal and 8 kV Air

for random point

Isolation 2500 V

DC

Interface

Interface RS-485

Format N, 8, 1

Baud Rate 1200 ~ 115200bps

LED Display

1 LED as Power/Communication Indicator

Dimension

72mm x 122mm x 35mm (W x L x H)

Power

Input Voltage Range 10 ~ 30 V

DC

Power Consumption 2.4 W (max.)

Power Reverse Polarity Protection Yes

+/- 4 kV ESD , +/- 4 kV EFT and +/- 3 kV Surge

Protection

Yes

I-7088 User Manual, Rev: A1.0

8

Environment

Operating Temperature -25 ~ 75°C

Storage Temperature -40 ~ 85°C

Humidity 5 ~ 95%, non-condensing

1.3. Block Diagram

I-7088 User Manual, Rev: A1.0

9

1.4. Application Wiring

1.4.1. PWM Wiring Connection

1.4.2. DI/Counter Wiring Connection

I-7088 User Manual, Rev: A1.0

10

1.5. Quick Start

 Refer to http://www.icpdas.com/download/7000/manual.htm

and use the “DCON Utility” to control the module. Otherwise,

use “DCON Utility -> Terminal -> Command Line” and follow

the commands shown below.

DI Status and Counter

1. Type @01DI[Enter]  Receive => !01xx01

2. Type $01500[Enter]  Receive => !01

3. Type @01P200000000[Enter]  Receive => !01

4. Type $0132FFFFFFFF[Enter]  Receive => !01

5. Type $0162[Enter]  Receive => !01

6. Type #012[Enter]  Receive => >00000000

7. Type $01504[Enter]  Receive => !01

8. Type #012[Enter]  Receive => >xxxxxxxx

 Step 1: Read the DI status channel 0 = 1, channel 1 =0, etc.

 Step 2: Disable the DI counter of channel 2

 Step 3: Set the DI preset counter value (00000000) of channel

2

 Step 4: Set the DI max. counter value (FFFFFFFF) of channel

2

 Step 5: Reset the DI counter of channel 2

 Step 6: Read the DI counter value (00000000) of channel 2

 Step 7: Enable the DI counter of channel 2

 Step 8: Read the DI counter value (xxxxxxxx) of channel 2

PWM Output

1. Type $01C0F100000[Enter]  Receive => !01100000

2. Type $01C0D50.0[Enter]  Receive => !0150.0

3. Type $01C0M1[Enter]  Receive => !01

4. Type @01DO01[Enter]  Receive => !01

 Step 1: Set the frequency of PWM channel 0 to 100KHz

 Step 2: Set the duty cycle of PWM channel 0 to 50.0%

 Step 3: Set PWM channel 0 to continuous mode

 Step 4: Start the output of PWM channel 0

I-7088 User Manual, Rev: A1.0

11

1.6. Default Settings

The default setting is given as following:

 Address=01

 Baud Rate=9600

 Checksum disable

 Data=1 Start+8 Data+1 Stop (no parity)

 PWM Frequency=10KHz

 PWM Duty Cycle=50%

 PWM Steps=1 (Continuous Type)

1.7. Configuration Tables

Baud Rate Setting (CC)

Code 03 04 05 06 07 08 09 0A

Baud Rate 1200

2400 4800 9600 19200

38400

57600

115200

Bits 7:6 Description

00 No parity and one stop bit

01 No parity and two stop bits

10 Even parity and one stop bit

11 Odd parity and one stop bit

Configuration Code Table (TT)

TT Input Range

50 Counter

52 Virtual Battery Backup

Note: For type 52, the count value will continue from the last

power off value.

I-7088 User Manual, Rev: A1.0

12

Data Format Setting (FF)

7 6 5 4 3 2 1 0

0 CS Reserved

Key Description

CS Checksum setting

0: Disabled

1: Enabled

Note: Reserved bits should be zero.

2. DCON Protocol

All communication with I-7000 modules consists of

commands generated by the host and responses transmitted by the

I-7000 module. Each module has a unique ID number that is used

for addressing purposes and is stored in non-volatile memory. The

ID is 01 by default and can be changed using a user command.

All commands sent to a module contain the ID address, meaning

that only the addressed module will respond. The only exception

to this is command ~** (Section 2.42), which are sent to all

modules, but, in these cases, the modules do not reply to the

command.

Command Format:

Leading

Character

Module

Address

Command [CHKSUM] CR

Response Format:

Leading

Character

Module

Address

Data [CHKSUM] CR

CHKSUM A 2-character checksum that is present when the

checksum setting is enabled. See Sections 1.7 and

2.1 for details.

CR End of command character, carriage return (0x0D)

I-7088 User Manual, Rev: A1.0

13

Checksum Calculation

1. Calculate the ASCII code sum of all the characters in the

command/response string, except for the carriage return

character (CR).

2. The checksum is equal to the sum masked by 0ffh.

Example:

Command string: $012(CR)

1. The Sum of the string = “$”+”0”+”1”+”2” =

24h+30h+31h+32h = B7h

2. Therefore the checksum is B7h, and so the CHKSUM = “B7”

3. The command string with the checksum = $012B7(CR)

Response string: !01200600(CR)

1. The Sum of the string =

“!”+”0”+”1”+”2”+”0”+”0”+”6”+”0”+”0” =

21h+30h+31h+32h+30h+30h+36h+30h+30h = 1AAh

2. Therefore the checksum is AAh, and so the CHKSUM = “AA”

3. The response string with the checksum = !01200600AA(CR)

Note:

All characters should be in upper case.

I-7088 User Manual, Rev: A1.0

14

General Command Sets

Command Response Description Section

%AANNTTCCFF

!AA

Sets the configuration of the

module

2.1

$AA2 !AANNTTCCFF

Reads the configuration of the

module

2.4

$AA5 !AAS Reads the module reset status 2.7

$AAF !AA(Data) Reads the firmware version 2.27

$AAI !AAS Reads the INIT status 2.28

$AAM !AA(Data) Reads the module name 2.29

~AAO(Name) !AA Sets the module name 2.39

~AARD !AATT Reads the response delay time 2.40

~AARDTT !AA Sets the response delay time 2.41

PWM Command Sets

Command Response Description Section

#AA >(Data) Reads the count 2.2

#AAN >(Data)

Reads the count of a specific

channel

2.3

$AA3N !AA Reads the max. counter value 2.5

$AA3N(data) !AA Sets the max. counter value 2.6

$AA5VV !AA Sets the counter status 2.8

$AA6 !AASS Reads the counter status 2.9

$AA6N !AA

Resets the counter of a specific

channel

2.10

$AA6NN !AA Resets the counter 2.11

$AA7N !AAS Reads the overflow status 2.12

$AAB !AAS Reads the power off count 2.13

$AABR !AA Clears the power off count 2.14

$AACnD !AA(data) Reads the duty cycle value 2.15

$AACnD(data) !AA Sets the duty cycle value 2.16

$AACnF !AA(data) Reads the frequency 2.17

$AACnF(data) !AA Sets the frequency 2.18

$AACnM !AAS

Reads the status of continuous

mode

2.19

$AACnMS !AA Sets the continuous mode 2.20

$AACnP !AA(data) Reads the steps value 2.21

I-7088 User Manual, Rev: A1.0

15

$AACnP(data) !AA Sets the steps value 2.22

$AACnT !AAS Reads the trigger configuration 2.23

$AACnTS !AA Sets the trigger configuration 2.24

$AACnN !AAS Reads the PWM synchronization 2.25

$AACnNS !AA Sets the PWM synchronization 2.26

$AAR !AA Resets the PWM 2.30

$AAW !AA Saves the PWM configuration 2.31

$AAYS !AA Starts the PWM synchronization 2.32

@AADODD !AA Sets the PWM status 2.33

@AADI !AAOO Reads the DI/O status 2.34

@AAGn !AA(data) Reads the preset value 2.35

@AAPN(data) !AA Sets the preset value 2.36

~AAD !AASS Reads the miscellaneous 2.37

~AADVV !AA Sets the miscellaneous 2.38

Host Watchdog Command Sets

Command Response Description Section

~** No Response The Host is OK 2.42

~AA0 !AASS Reads the host watchdog status 2.43

~AA1 !AA Resets the host watchdog status 2.44

~AA2 !AAETT

Reads the host watchdog timeout

settings

2.45

~AA3ETT !AA

Sets the host watchdog timeout

settings

2.46

~AAI !AA Sets Soft INIT 2.47

~AATnn !AA Sets the Soft INIT timeout value 2.48

I-7088

I-7088 User Manual, Rev: A1.0

16

2.1. %AANNTTCCFF

Description:

This command is used to set the configuration of a module.

Syntax:

%AANNTTCCFF[CHKSUM](CR)

% Delimiter character

AA The address of the module to be configured in

hexadecimal format (00 to FF)

NN The new address of the module in hexadecimal format

(00 to FF)

TT The new type code, see Section 1.7 for details

CC The new Baud Rate code, see Section 1.7 for details.

For the I-7088, the rear slide switch must be moved to

the INIT position in order to change Baud Rates. See

Section A.1 for details.

FF The command used to set the data format, checksum,

and filter settings (Section 1.7). For the I-7088, the

rear slide switch must be moved to the INIT position

in order to change the checksum setting. See Section

A.1 for details.

Response:

Valid Command: !AA[CHKSUM](CR)

Invalid Command: ?AA[CHKSUM](CR)

! Delimiter for a valid command

? Delimiter for an invalid command

(If the Baud Rate or checksum settings are changed

without switching the rear slide switch to the INIT

position, the module will return an invalid command.)

AA The address of the module in hexadecimal format (00

to FF)

I-7088

I-7088 User Manual, Rev: A1.0

17

There will be no response if the command syntax is incorrect,

there is a communication error, or there is no module with the

specified address.

Examples:

Command: %0102500600 Response: !02

Changes the address of module 01 to 02 and the module

returns a valid response.

Command: %0202520600 Response: !02

Sets the type of module 02 to be 52 (Virtual Battery

Backup) and the module returns a valid response.

Command: %0202520A00 Response: ?02

Changes the Baud Rate of module 02 to 115200bps and

the module returns an invalid response, because it is not in

INIT mode.

Command: %0202520A00 Response: !01

Changes the Baud Rate of module 02 to 115200bps and

the module is in INIT mode. The module returns a valid

response.

Related Commands:

Section 2.4 $AA2, Section 2.47 ~AAI, Section 2.48 AATnn

ICP DAS USA I-7088 User manual

Related papers

Other documents