ICPDAS I-7088, I-7088D, M-7088, M-7088D User Manual

I-7088, I-7088D,

M-7088 and M-7088D

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 any 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.

Trademarks

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 and M-7088 User Manual, Rev: A1.2 7MH-026-A12

Table of Contents

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

1.1. Pin Assignments ..................................................................................... 7

1.2. Specifications..........................................................................................8

1.3. Block Diagram.......................................................................................10

1.4. Application Wiring ................................................................................. 11

1.4.1. PWM Wiring Connections.............................................................. 11

1.4.2. DI/Counter Wiring Connections...................................................... 11

1.5. Quick Start ............................................................................................12

1.6. Default Settings

.....................................................................................14

1.7. Configuration Tables

.............................................................................15

2. DCON Protocol ........................................................................................... 16

2.1. %AANNTTCCFF...................................................................................21

2.2. #AA .......................................................................................................25

2.3. #AAN.....................................................................................................27

2.4. #AA1cDD ..............................................................................................29

2.5. #AAAcDD..............................................................................................31

2.6. $AA2 .....................................................................................................33

2.7. $AA3N...................................................................................................35

2.8. $AA3N(Data)

.........................................................................................37

2.9. $AA5 .....................................................................................................39

2.10. $AA5VV............................................................................................... 41

2.11. $AA6 ...................................................................................................43

2.12. $AA6N.................................................................................................45

2.13. $AA6NN

..............................................................................................47

2.14. $AA7N.................................................................................................49

2.15. $AA8 ...................................................................................................51

2.16. $AA8V................................................................................................. 53

2.17. $AA9(Data) ......................................................................................... 55

2.18. $AAB................................................................................................... 57

2.19. $AABR ................................................................................................59

2.20. $AACnD.............................................................................................. 61

2.21. $AACnD(Data) ....................................................................................63

2.22. $AACnF...............................................................................................65

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2.23. $AACnF(Data)..................................................................................... 67

2.24. $AACnM..............................................................................................69

2.25. $AACnMS ...........................................................................................71

2.26. $AACnP ..............................................................................................73

2.27. $AACnP(Data) .................................................................................... 75

2.28. $AACnT...............................................................................................77

2.29. $AACnTS............................................................................................ 79

2.30. $AACnN.............................................................................................. 81

2.31. $AACnNS............................................................................................83

2.32. $AAF................................................................................................... 85

2.33. $AAI ....................................................................................................87

2.34. $AAM ..................................................................................................89

2.35. $AAP................................................................................................... 91

2.36. $AAPN ................................................................................................93

2.37. $AAR...................................................................................................95

2.38. $AAW.................................................................................................. 97

2.39. $AAYS.................................................................................................99

2.40. @AADODD....................................................................................... 101

2.41. @AADI..............................................................................................103

2.42. @AAGN ............................................................................................105

2.43. @AAPN(Data)................................................................................... 107

2.44. ~AAD................................................................................................. 109

2.45. ~AADVV............................................................................................ 111

2.46. ~AAO(Name)

.....................................................................................113

2.47. ~AARD..............................................................................................115

2.48. ~AARDTT

..........................................................................................117

2.49. ~**..................................................................................................... 119

2.50. ~AA0................................................................................................. 120

2.51. ~AA1................................................................................................. 122

2.52. ~AA2................................................................................................. 124

2.53. ~AA3ETT...........................................................................................126

2.54. ~AAI.................................................................................................. 128

2.55. ~AATnn.............................................................................................130

3. Modbus RTU Protocol .............................................................................. 133

3.1. 02 (0x02) Read PWM Status............................................................... 134

3.2. 04 (0x04) Read DI Count ....................................................................136

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3.3. 70 (0x46) Read/Write Modbus Settings............................................... 137

3.3.1. Sub-function 00 (0x00) Read module name................................. 138

3.3.2. Sub-function 04 (0x04) Set module address................................139

3.3.3. Sub-function 05 (0x05) Read communication settings................. 140

3.3.4. Sub-function 06 (0x06) Set communication settings.................... 142

3.3.5. Sub-function 32 (0x20) Read firmware version............................ 144

3.3.6. Sub-function 41 (0x29) Read miscellaneous................................ 145

3.3.7. Sub-function 42 (0x2A) Write miscellaneous settings.................. 146

3.4. M-7088 Address Mappings ................................................................. 147

4. Operation Principles & Application Notes ............................................. 150

4.1. INIT* pin Operation Principles.............................................................150

4.2. PWM Operation Principle....................................................................151

Appendix

.......................................................................................................153

A.1. INIT M

ode...........................................................................................153

A.2. Dual Watchdog Operation................................................................... 155

A.3. Frame Ground .................................................................................... 156

A.4. Node Information Area........................................................................158

A.5. Reset Status....................................................................................... 159

I-7088 and M-7088 User Manual, Rev: A1.2 7MH-026-A12

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 a variable 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, control the brightness of lamps, or 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 the need

for software intervention.

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

cycle (Refer to Section 4.2).

 Software and hardware trigger mode for PWM output.  Individual and synchronous PWM output. By using software

trigger mode, you can set the configuration for all PWM channels then trigger them either individually or all 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 and M-7088 User Manual, Rev: A1.2 7MH-026-A12

Applications

 Controlling the position/speed of motors  Controlling 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 and M-7088 User Manual, Rev: A1.2 7MH-026-A12

1.1. Pin Assignments

I-7088 and M-7088 User Manual, Rev: A1.2 7MH-026-A12

1.2. Specifications

PWM Output Channels 8 Type TTL, Isolated Max. Frequency 500 KHz 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 points

Isolation 2500 V

Digital Input Channels 8 Type Sink, Isolated ON Voltage Level +2.4 V~+5 V OFF Voltage Level +1 V Max. Max. Frequency 1 MHz Max. Counts 32bits (4,294,967,295) Built-in Virtual Battery Backup for

Counter Value

Yes

ESD Protection

4 kV Contact for each terminal and 8 kV Air for random point

Isolation 2500 V

Interface Interface RS-485 Format N, 8, 1 Baud Rate 1200 ~ 115200bps LED Display

I-7088 and M-7088 User Manual, Rev: A1.2 7MH-026-A12

1 LED as Power/Communication Indicator Dimensions 72mm x 122mm x 35mm (W x L x H) Power Input Voltage Range 10 ~ 30 VDC Power Consumption 2.4 W (max.) Power Reverse Polarity Protection Yes +/- 4 kV ESD , +/- 4 kV EFT and

+/- 3 kV Surge Protection

Yes

Environment Operating Temperature -25 ~ 75°C Storage Temperature -40 ~ 85°C Humidity 5 ~ 95%, non-condensing

I-7088 and M-7088 User Manual, Rev: A1.2 7MH-026-A12

1.3. Block Diagram

I-7088 and M-7088 User Manual, Rev: A1.2 7MH-026-A12

1.4. Application Wiring

1.4.1. PWM Wiring Connections

1.4.2. DI/Counter Wiring Connections

I-7088 and M-7088 User Manual, Rev: A1.2 7MH-026-A12

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

I-7088 and M-7088 User Manual, Rev: A1.2 7MH-026-A12

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 100 KHz  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 and M-7088 User Manual, Rev: A1.2 7MH-026-A12

1.6. Default Settings

The default settings are as follows:

 Address = 01  Baud Rate = 9600  Checksum disabled  Data = 1 Start + 8 Data + 1 Stop (no parity)  PWM Frequency = 10 KHz  PWM Duty Cycle = 50%  PWM Steps = 1 (Continuous Type)

I-7088 and M-7088 User Manual, Rev: A1.2 7MH-026-A12

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 poweroff value.

Data Format Settings (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.

I-7088 and M-7088 User Manual, Rev: A1.2 7MH-026-A12

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 2.49), which is sent to all modules, but, in this case, 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 The End of command character, carriage return (0x0D)

I-7088 and M-7088 User Manual, Rev: A1.2 7MH-026-A12

Checksum Calculation:

Calculate the ASCII code sum of all the characters in the command/response string, except for the carriage return character (CR).

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

Example:

Command string: $012(CR) The sum of the string = “$”+”0”+”1”+”2” = 24h+30h+31h+32h = B7h Therefore the checksum is B7h, and so CHKSUM = “B7” The command string with the checksum = $012B7(CR)

Response string: !01200600(CR) The sum of the string = “!”+”0”+”1”+”2”+”0”+”0”+”6”+”0”+”0” =

21h+30h+31h+32h+30h+30h+36h+30h+30h = 1AAh Therefore the checksum is AAh, and so CHKSUM = “AA” The response string with the checksum = !01200600AA(CR)

Note:

All characters should be in upper case.

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

2.6

$AA5 !AAS

Reads reset status of the module

2.9

$AAF !AA(Data)

Reads the firmware version

2.32

$AAI !AAS

Reads the status of the INIT switch

2.33

I-7088 and M-7088 User Manual, Rev: A1.2 7MH-026-A12

$AAM !AA(Data) Reads the module name 2.34 $AAP !AASC

Reads the communication protocol

2.35

$AAPN !AA

Sets the communication protocol

2.36 ~AAO(Name) !AA Sets the module name 2.46 ~AARD !AATT

Reads the response delay time

2.47

~AARDTT !AA

Sets the response delay time

2.48

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

#AA1cDD >

Sets the output for a specific PWM channel

2.4

#AAAcDD >

Sets the output for a specific PWM channel

2.5

$AA3N !AA

Reads the max. counter value of a specific channel

2.7

$AA3N(data) !AA

Sets the max. counter value for a specific channel

2.8

$AA5VV !AA

Sets the counter status for a specific channel

2.10 $AA6 !AASS Reads the counter status 2.11 $AA6N !AA

Resets the counter of a specific channel

2.12

$AA6NN !AA

Resets the counter of a specific channel

2.13

$AA7N !AAS

Reads the status of the overflow for a specific channel

2.14

$AAB !AAS Reads the power-down count 2.18

I-7088 and M-7088 User Manual, Rev: A1.2 7MH-026-A12

$AABR !AA Clears the power-down count 2.19 $AACnD !AA(data)

Reads the duty cycle value of a specific channel

2.20

$AACnD(data) !AA

Sets the duty cycle value for a specific channel

2.21

$AACnF !AA(data)

Reads the frequency value of a specific channel

2.22

$AACnF(data) !AA

Sets the frequency value for a specific channel

2.23

$AACnM !AAS

Reads the continuous mode status of a specific channel

2.24

$AACnMS !AA

Sets the continuous mode for a specific channel

2.25

$AACnP !AA(data)

Reads the PWM step value of a specific channel

2.26

$AACnP(data) !AA

Sets the PWM step value for a specific channel

2.27

$AACnT !AAS

Reads the hardware trigger configuration of a specific channel

2.28

$AACnTS !AA

Sets the hardware trigger configuration for a specific channel

2.29

$AACnN !AAS

Reads the status of the PWM synchronization of a specific channel

2.30

$AACnNS !AA

Sets the PWM synchronization for a specific channel

2.31

$AAR !AA Resets the PWM 2.37 $AAW !AA Saves the PWM configuration 2.38

$AAYS !AA

Starts the PWM synchronization

2.39

@AADODD !AA

Sets the status of the PWM output port

2.40

I-7088 and M-7088 User Manual, Rev: A1.2 7MH-026-A12

@AADI !AAOO

Reads the status of the PWM output port and the DI

2.41

@AAGn !AA(data)

Reads the preset count value of a specific channel

2.42

@AAPN(data) !AA

Sets the preset count value for a specific channel

2.43

~AAD !AASS

Reads the miscellaneous settings

2.44

~AADVV !AA

Sets the miscellaneous settings

2.45

Host Watchdog Command Sets

Command Response Description Section

~** No Response The Host is OK 2.49 ~AA0 !AASS

Reads the status of the Host Watchdog

2.50

~AA1 !AA

Resets the status of the Host Watchdog

2.51

~AA2 !AAETT

Reads the Host Watchdog timeout settings

2.52

~AA3ETT !AA

Sets the Host Watchdog timeout settings

2.53 ~AAI !AA Sets the Software INIT 2.54 ~AATnn !AA

Sets the Software INIT timeout value

2.55

LED Command Sets

Command Response Description Section $AA8 !AAS Reads the LED configuration 2.15 $AA8V !!AA Sets the LED configuration 2.16 $AA9(data) !!AA Sends the data to the LED 2.17

I-7088 and M-7088 User Manual, Rev: A1.2 7MH-026-A12

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 the Baud Rate settings. See Section A.1 for details.

FF The command used to set the checksum, and the input

range 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.

I-7088 and M-7088 User Manual, Rev: A1.2 7MH-026-A12

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)

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 52 (Virtual Battery Backup) and the module returns a valid response.

I-7088 and M-7088 User Manual, Rev: A1.2 7MH-026-A12

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 2.6 $AA2, Section 2.54 ~AAI, Section 2.55 ~AATnn

ICPDAS I-7088, I-7088D, M-7088, M-7088D User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual