ICP DAS USA I-7088 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.
Copyright
Copyright © 2010 by ICP DAS Co. Ltd. All rights are reserved.
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

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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 Mode........................................................................................... 153
A.2. Dual Watchdog Operation................................................................... 155
A.3. Frame Ground .................................................................................... 156
A.4. Node Information Area........................................................................ 158
A.5. Reset Status....................................................................................... 159

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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)

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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

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1.1. Pin Assignments

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

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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

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1.3. Block Diagram

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1.4. Application Wiring
1.4.1. PWM Wiring Connections
1.4.2. DI/Counter Wiring Connections

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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

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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

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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)

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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.
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.

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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)

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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

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$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

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$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

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@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