User Manual
Contents
1. Request 00 Address 1 Byte 1 247 01 Function code 1 Byte 0x06 02 03 Starting channel 2 Bytes 0x01E8 04 05 Input channel 2 Bytes 0x0000 0x00FF WDT timeout numbers value 0 255 in 0 1 second Response 00 Address 1 Byte 1 247 01 Function code 1 Byte 0x06 02 03 Output channel 2 Bytes The value is the same as byte 02 and numbers 03 of the Request 04 05 Output value 2 Bytes The value is the same as byte 04 and 05 of the Request Error Response 00 Address 1 Byte 1 247 01 Function code 1 Byte 0x86 02 Exception code 1 Byte Refer to the Modbus standard for more details 48 Modbus Mapping Table EX9044M DI 4 DO 8 ADDR Item Attribute 00033 00036 Digital Input channel for DIO 3 R 00065 00068 DI Latch high value for DIO 3 R 00097 00100 DI Latch low value for DIO 3 R 00264 Clear the Latch value W 30001 30004 Digital input counter for DIO 3 R 00513 00516 Clear the DI counter value for DIO 3 W 00001 00008 Digital output channel for DOO 7 R W 492. AALS CHK cr delimiter character AA address of reading response module 00 to FF command for read latched digital input S 1 select latch high status O select latch low status Response Valid Command Data Invalid Command AA Data readed status 1 the input channel is latched 0 the input channel is not latched Example Command 01L1 Receive 012300 Read address 01 latch high data return 0123 Command 01C Receive 01 Clear address 01 Latched data return success Command 01L1 Receive 000000 Read address 01 latch high data return 0000 22 2 14 AA Description Read Digital I O Status Syntax AA CHK cr delimiter character AA address of reading response module 00 to FF Response Valid Command gt Data Invalid Command AA Data First Data Second Data Note Both the First Data and the Second Data are in two hexadecimal digitals format Module The First data The Second data EX9044M DOO DO7 00 FF DIO DI3 00 0F Example Command 01 Receive gt FF00 Assume module is EX9044M read address 01 DIO status return OFOO digital input channel 0 3 are off digital output channel 0 7 are on 23 2 15 AA Data Description Set Digital I O Status Syntax AA Data CHK cr delimiter character AA address of reading response module 00 to FF Data output value the data format is following Data is one character for output channel less than
3. AAPN see Section 2 18 for details Originally the INIT mode is accessed by connecting the INIT terminal to the GND terminal 1 5 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 Data Format Setting FF 7 6 5 4 3 2 1 0 1 2 3 1 Counter Update Direction 0 Falling Edge 1 Rising Edge 2 Checksum Bit 0 Disable 1 Enable 3 The reserved bits should be zero Read Digital Input Output Data Format table Data of AA6 AA4 AALS First Data Second Data 00 Data of AA First Data Second Data Note Both the First Data and the Second Data are in two hexadecimal digitals format Module The First data The Second data EX9044 DO0 DO7 00 FF DIO DI3 00 0F 2 1 AANNTTCCFF Description Set Module Configuration Syntax AANNTTCCFF CHK cr a delimiter character AA address of setting response module 00 to FF NN _ new address for setting response module 00 to FF TT type 40 for DIO module CC new baudrate for setting module FF new data format for setting module IF the configuration with new baudrate or new checksum setting before using this command it is needed to short the INIT to ground The new setting is saved in the EEPROM and will be effective after the next power on reset Respon
4. l 03 Input Output 1 Byte 0x00 0x0F channel readback A bit corresponds to a channel When the value bit is 1 it denotes that the value of the channel that was set is ON if the bit is 0 it denotes that the value of the channel that was set is OFF Error Response 00 Address 1 Byte 1 247 01 Function code 1 Byte 0x81 02 Exceptioncode l Byte Refer to the Modbus standard for more details 38 02 0x02 Read Digital Input Value Request 00 Address 1 Byte 1 247 01 Function code 1 Byte 0x02 02 03 Starting channel 2 Bytes Ox0000 0x0003 04 05 Input channel 2 Bytes 0x0001 0x0004 numbers Response 00 Address l Byte 1 247 01 Function code 1 Byte 0x02 02 Byte count 1Byte l 03 Input channel 1 Byte 0x00 0x0F readback value A bit corresponds to a channel When the bit is 1 it denotes that the value of the channel that was Input response if the bit is 0 it denotes that the value of the channel that was no Input response Error Response 00 Address l Byte 1 247 0l Function code 1 Byte 0x82 02 Exception code l Byte Refer to the Modbus standard for more details 39 03 0x03 Read Digital Input Count Value Request 00 Address l Byte 1 247 01 Function code 1 Byte 0x03 02 03 Starting channel 2 Bytes Ox0000 0x0003 04 05 Input channel 2 Bytes 0x0
5. 03 of the Request 04 05 Output channel 2 Bytes The value is the same as byte 04 and numbers 05 of the Request Error Response 00 Address 1 Byte 1 247 01 Function code 1 Byte Ox8F 02 Exceptioncode l Byte Refer to the Modbus standard for more details 43 01 0x01 Read WDT timeout status Request 00 Address 1 Byte 1 247 01 Function code 1 Byte 0x01 02 03 Starting channel 2 Bytes 0x010D 04 05 Output channel 2 Bytes 0x0001 numbers Response 00 Address 1 Byte 1 247 01 Function code 1 Byte 0x01 02 Byte count 1 Byte l 03 Output channel 1 Byte 0x00 The WDT timeout status is clear readback value 0x01 The WDT timeout status is enable Error Response 00 Address 1 Byte 1 247 01 Function code 1 Byte Ox81 02 Exception code 1 Byte Refer to the Modbus standard for more details 44 03 0x03 Read WDT timeout Value Request 00 Address 1 Byte 1 247 01 Function code 1 Byte 0x03 02 03 Starting channel 2 Bytes 0x01E8 04 05 Input channel 2 Bytes 0x0001 numbers Response 00 Address 1 Byte 1 247 01 Function code 1 Byte 0x03 02 Byte count 1 Byte 2 03 Input channel count 1 Byte 0x0000 0x00FF WDT timeout value value 0 255 in 0 1 second Error Response 00 Address 1 Byte 1 247 Ol Function code 1 Byte 0x83 02 Excep
6. 4 For EX9060D from 0 to F For EX9063D from 0 to 7 Data is two characters for output channel less than 8 For EX9044D 50D 55D from 00 to FF For EX9065D from 00 to 1F For EX9066D 67D from 00 to 7F Data is four characters for output channel less than 16 For EX9042D from 0000 to 1FFF For EX9043D from 0000 to FFFF Response Valid Command gt Invalid Command Ignore Command delimiter for ignore command The module is in Host Watchdog Timeout Mode and the output is set to safe value Example Command 0107 Receive gt Output address 01 value 7 return success The example is suitable for EX9044M s digital output channel 0 3 are on 24 2 16 AAO Data Description Set Module Name Syntax AAO Data CHK cr delimiter character AA address of reading response module 00 to FF O command for set module name Data new name for module max 6 characters Response Valid Command IAA Invalid Command AA Example Command 0109044M Receive 01 Set address 01 module name 9044M return success Command 01M Receive 019044M Read address 01 module name return name 9044M 25 2 17 AAP Description Read protocol information of Module Syntax AAP CHK cr delimiter character AA address of reading response module 00 to FF F command for read protocol information of module Response Valid Command AAS Invalid Command AA S The protocol supported by the module 10 the protocol set
7. in EEPROM is Normal mode 11 the protocol set in EEPROM is ModbusRTU mode Example Command 01P Receive 0110 Reads the communication protocol of module 01 and returns a response of 10 meaning the protocol that will be used at the next power on reset is normal mode Command 01P1 Receive 01 Sets the communication protocol of module 01 to Modbus RTU and returns a valid response And the next power on reset is in ModbusRTU mode 26 2 18 AAPN Description Set the protocol information of Module Syntax AAPN CHK cr delimiter character AA address of reading response module 00 to FF P command for set protocol information of module N The protocol supported by the module 0 the protocol set in EEPROM is Normal mode 1 the protocol set in EEPROM is ModbusRTU mode Before using this command it is needed to short the INIT to ground The new protocol is saved in the EEPROM and will be effective after the next power on reset Response Valid Command 1AA Invalid Command AA Example Command 01P1 Receive 01 Sets the communication protocol of module 01 to Modbus RTU and returns a valid response And the next power on reset is in ModbusRTU mode 27 2 19 Description Host OK Host send this command to all modules for send the information Host OK Syntax CHK cr delimiter character ae command for all modules Response No response Example Command No response 28 2
8. 001 0x0004 numbers Response 00 Address l Byte 1 247 01 Function code 1 Byte 0x03 02 Byte count l Byte N x2 03 Input channel N x2_ Each channel can record a maximum count value Byte count value up to 65535 0xFFFF N Number of input channels Error Response 00 Address l Byte 1 247 01 Function code 1 Byte 0x83 02 Exceptioncode l Byte Refer to the Modbus standard for more details 40 04 0x04 Read Digital Input Count Value Request 00 Address l Byte 1 247 01 Function code 1 Byte 0x04 02 03 Starting channel 2 Bytes Ox0000 0x0003 04 05 Input channel 2 Bytes 0x0001 0x0004 numbers Response 00 Address l Byte 1 247 01 Function code 1 Byte 0x04 02 Byte count l Byte N x2 03 Input channel N x2_ Each channel can record a maximum count value Byte count value up to 65535 0xFFFF N Number of input channels Error Response 00 Address l Byte 1 247 01 Function code 1 Byte 0x84 02 Exceptioncode l Byte Refer to the Modbus standard for more details 41 05 0x05 Write Digital Output Clear DI count Value Single channel Request 00 Address 1 Byte 1 247 01 Function code 1 Byte 0x05 02 03 Output channel 2 Bytes 0x0000 0x0007 for output channel number 0x0107 to clear the latch value 0x0200 0x0203 to clear
9. 1 Introduction EX 9044D 9044D M provides 8 isolated digital output open collector channels and 4 isolated digital input channels All output channels are single ended with common power see sec 1 2 1 Block diagram Specifications Interface RS 485 2 wires Speed 1200 2400 4800 9600 19 2K 38 4K 57 6K 115 2K Output channels 8 isolated output channels with common power Isolation Voltage 3750Vrms Output characteristic open collector transistor NPN Max output Load voltage 30 Vdc Maximum output current sink 375mA Input channels 4 isolated input channels with common source Input impedance 3K ohms Logical level 0 1 Vdc Max Logical level 1 4 0V 30Vdc LED 12 digital input output status LED Power input 10V to 30Vdc Power Consumption 1 5W 1 1 Specifications EX 9044D EX 9044D M Digital Output Output Channels 8 isolated output channels with common power Output Type Open collector transistor Load Voltage 30VDC Max Load Current 375mA max Isolation Voltage 3000VDC Digital Input Input Channels 4 isolated input channels with common source Logical Level 1 3 5V to 30V Logical Level 0 1V Max Input Impedance 3K Ohms Photo Isolation 3750 Vrms Isolation Voltage 3000VDC Environment Modbus RTU Not support Support Power Requirement 10 to 30 VDC Power Consumption 1 5W Operating Temperature 25 C to 75 C
10. 20 AAO Description Read Module Status Syntax AA0 CHK cr delimiter character AA address of reading response module 00 to FF 0 command for read module status Response Valid Command AASS Invalid Command AA SS module status 00 host watchdog timeout status is clear 04 host watchdog timeout status is set The status will store into EEPROM and only may reset by the command AAl 29 2 21 AAT Description Reset Module Status Syntax AA1 CHK cr delimiter character AA address of reading response module 00 to FF 1 command for reset module status Response Valid Command IAA Invalid Command AA 2 22 AA2 Description Read the Host Watchdog Timeout Value Syntax AA2 CHK cr delimiter character AA address of reading response module 00 to FF 2 command for read host watchdog timeout value Response Valid Command AAEVV Invalid Command AA E host watchdog enable status 1 Enable 0 Disable VV timeout value in HEX format each count is 0 1 second 01 0 1 second and FF 25 5 seconds 2 23 AA3EVV Description Set host Watchdog Timeout Value Syntax AA3EVV CHK cr delimiter character AA address of reading response module 00 to FF 3 command for set host watchdog timeout value 1 Enabled 0 Disable host watchdog VV timeout value from 01 to FF each for 0 1 second Response Valid Command IAA Invalid Command AA Example Command 010 Receive 0100 Read address 01 modules sta
11. AA address of reading response module 00 to FF 5 command for read reset status Response Valid Command AAS Invalid Command AA S reset status 1 the module is been reset 0 the module is not been rested Example Command 015 Receive 011 Read address 01 reset status return module is been reset Command 015 Receive 010 Read address 01 reset status return no reset occurred 2 8 AAG Description Read Digital I O Status Syntax AA6 CHK cr delimiter character AA address of reading response module 00 to FF 6 command for read channel status Response Valid Command Data Invalid Command AA Data First Data Second Data 00 Note Both the First Data and the Second Data are in two hexadecimal digitals format Module The First data The Second data EX9044 DOO DO7 00 FF DIO DI3 00 0F Example Command 016 Receive FF0000 Assume module is EX9044 read address 01 DIO status return OFOO digital input channel 0 3 are off digital output channel 0 7 are on 2 9 AAF Description Read Firmware Version Syntax AAF CHK cr delimiter character AA address of reading response module 00 to FF F command for read firmware version Response Valid Command AA Data Invalid Command AA Data Firmware version of module Example Command 01F Receive 01D03 07 Read address 01 firmware version return version D03 07 2 10 AAM Description Read Modul
12. Storage Temperature 30 C to 75 C Notes 1 Warm UP for 30 minutes is recommended 1 2 Wire connection 1 2 1 Block Diagrams Led Display IN COM IN1 IN4 Rea ExtPWR Controller OutCOM eat ut DO8 1 2 2 Wiring diagram for the EX 9044D Dry Contact Input TTL CMOS Input TTL 5V Digital Output ExtPWR OutCOM 1 3 Default Settings Default settings for the EX 9044D modules are as follows Module Address 01 DIO Type 40 Baud Rate 9600 bps Default settings for the EX 9044D M modules are as follows Protocol Modbus RTU Module Address 01 DIO Type 40 Baud Rate 9600 bps 1 4 INIT Pin Operation Each EX9000 module has a build in EEPROM to store configuration information such as address type baudrate and other information Sometimes user may forget the configuration of the module Therefore the EX9000 have a special mode named INIT mode to help user to resolve the problem The INIT mode is setting as Address 00 baudrate 9600bps no checksum To enable INIT mode please following these steps Stepl Power off the module Step2 Connect the INIT pin with the GND pin Step3 Power on Step4 Send command 002 cr in 9600bps to read the Configuration stored in the module s EEPROM There are commands that require the module to be in INIT mode They are 1 AANNTTCCFF when changing the Baud Rate and checksum settings See Section 2 1 for details 2
13. e Name Syntax AAM CHK cr delimiter character AA address of reading response module 00 to FF M address of reading response module 00 to FF Response Valid Command AA Data Invalid Command AA Data Name of module Example Command 01M Receive 019044M Read address 01 module name return name 9044M 2 11 AAC Description Clear Latched Digital Input Syntax AAC CHK cr delimiter character AA address of reading response module 00 to FF C command for clear latched digital input Response Valid Command IAA Invalid Command AA Example Command 01L0 Receive 01FFFF00 Read address 01 latch low data return FFFF Command 01C Receive 01 Clear address 01 Latched data return success Command 01L0 Receive 000000 Read address 01 latch low data return 0000 20 2 12 AACN Description Clear Digital Input Counter Syntax AACN CHK cr delimiter character AA address of reading response module 00 to FF C command for clear latched digital input N digital counter channel N to clear Response Valid Command IAA Invalid Command AA Example Command 010 Receive 0100123 Read address 01 input channel 0 counter value return 123 Command 01C0 Receive 01 Clear address 01 input channel 0 counter value return success Command 010 Receive 0100000 Read address 01 input channel 0 counter value return 0 21 2 13 AALS Description Read Latched Digital Input Syntax
14. eive 0300103 Read address 03 digital input counter value of channel 2 return value 103 Command 025 Receive 02 Read address 02 digital input counter value of channel 5 return the channel is not available 2 5 AA2 Description Read configuration Syntax AA2 CHK cr delimiter character AA address of reading response module 00 to FF 2 command for read configuration Response Valid Command AATTCCFF Invalid Command AA TT type code of module it must be 40 CC baudrate code of module FF data format of module Example Command 012 Receive 01400600 Read the configuration of module 01 return DIO mode baudrate 9600 no checksum Note check configuration Tables 2 6 AA4 Description Reads the synchronized data Syntax AA4 CHK cr delimiter character AA address of reading response module 00 to FF 4 command to read the synchronized data Response Valid Command S Data Invalid Command AA S status of synchronized data 1 first read 0 been readed Data synchronized DIO value See section 1 5 for data format Example Command 014 Receive 01 Read address 01 synchronized data return no data available Command no response Send synchronized sampling to all modules Command 014 Receive 100F00 Read address 01 synchronized data return S 1 first read and synchronized data 0F00 2 7 AA5 Description Read Reset Status Syntax AA5 CHK cr delimiter character
15. er modules Data is VV00 where VV is the Power On Value or Safe Value Example Command 0100 Receive gt Output address 01 Value 00 return success Command 015S Receive 01 Set address 01 Safe Value return success Command 01FF Receive gt Output address 01 Value FF return success Command 015P Receive 01 Set address 01 Power On Value return success Command 014S Receive 0100 Read address 01 Safe Value return 00 Command 014P Receive 01FF Read address 01 Power On Value return FF 2 25 AASV Description Set Power On Safe Value Syntax AASV CHK cr delimiter character AA address of reading response module 00 to FF 5 command for set Power On Safe value V P set current output as Power On Value S set current output as Safe Value Response Valid Command IAA Invalid Command AA Example Command O1AA Receive gt Output address 01 Value AA return success Command 015P Receive 01 Set address 01 Power On Value return success Command 0155 Receive gt Output address 01 Value 55 return success Command 015S Receive 01 Set address 01 Safe Value return success Command 014P Receive 01AA00 Read address 01 Power On Value return AA Command 014S Receive 015500 Read address 01 Safe Value return 55 EX9044 M Quick Start 1 The default setting is MODBUS mode after Power On 2 Using INIT pin to contact with GND pin then Power On will enter N
16. ormal mode 3 Command 00P0 is set EX9044 M to Normal mode after Repower On On normal mode user can set other setting like address Baudrate Please check the EX9000 user manual 4 Command AAP1 is set to MODBUS mode after Repower On 5 Under Normal mode that Command AAP can check which mode it is after Repower On Response AA10 Normal AA11 MODBUS The Modbus protocol was originally developed for Modicon controllers by Modicon Inc Detailed information can be found at http www modicon com techpubs toc7 html Visit http www modbus orq to find more valuable information 9000M series modules support the Modbus RTU protocol The communication Baud Rates range from 1200bps to 115200bps The parity data bits and stop bits are fixed as no parity 8 data bits and Istop bit The following Modbus functions are supported 37 01 0x01 Read Digital Input Output Value Request 00 Address 1 Byte 1 247 01 Function code 1 Byte 0x01 02 03 Starting channel 2 Bytes 0x0000 0x0007 for DO readback value 0x0020 0x0023 for DI readback value 0x0040 0x0043 for DI Latch high value 0x0060 0x0063 for DI Latch low value 0x0080 0x0087 for DO safe value 0x00A0 0x00A7 for DO power on value 04 05 Input Output 2 Bytes Input 0x0001 0x0004 channel numbers Output 0x0001 0x0008 Response 00 Address 1 Byte 1 247 01 Function code l Byte 0x01 02 Byte count 1 Byte
17. se Valid Command IAA Invalid Command AA Example Command 0102240600 Receive 02 Set module address 01 to 02 return Success 2 2 Description Synchronized Sampling Syntax CHK cr delimiter character is synchronized sampling command Response No response Example Command No response Send synchronized sampling command to all modules Command 014 Receive 10F0000 Read synchronized data from address 01 return S 1 first read and data is 0F0000 Command 014 Receive 00F0000 Read synchronized data from address 01 return S 0 have readed and data is 0F0000 2 3 HAABBDD Description Digital Output Syntax XAABBDD CHK cr delimiter character AA BBDD Output command and parameter address of reading response module 00 to FF For output multi channel the BB 00 OA or OB the select which output group and the DD is the output value Parameter for Multi Channel Output Output DD for command AABBDD Channels BB 00 0A BB 0B EX9042D 13 00 to FF DO 0 7 00 to 1F DO 8 12 EX9043D 16 00 to FF DO 0 7 00 to 1F DO 8 15 EX9044D 8 00 to FF DO O 7 NA NA EX9050D 8 00 to FF DO 0 7 NA NA EX9055D 8 00 to FF DO O 7 NA NA EX9060D 4 00 to OF RLU 4 NA NA EX9063D 3 00 to 07 RL 1 3 NA NA EX9065D 5 00 to IF RL 1 5 NA NA EX9066D 7 00 to 7F RL 1 7 NA NA EX9067D Vi 00 to 7F RL 1 7 NA NA For outpu
18. t single channel the BB 1c Ac or Bc where c is the selected channel and the DD must be 00 to clear output and 01 to set output Parameter for Single Channel Output Single channel output command AABBDD c for BB 1c Ac c for BB Bc EX9042D 0 to 7 DO 0 7 Oto4 DO 8 12 EX9043D 0 to 7 DO 0 7 Oto7 DO 8 15 EX9044D 0 to 7 DO 0 7 NA NA EX9050D 0 to 7 DO 0 7 NA NA EX9055D 0 to 7 DO 0 7 NA NA EX9060D 0 to 3 RL 1 4 NA NA EX9063D 0 to 2 RL 1 3 NA NA EX9065D 0 to 4 RL 1 5 NA NA EX9066D 0 to 6 RL 1 7 NA NA EX9067D 0 to 6 RL 1 7 NA NA Response Valid Command gt Invalid Command Ignore Command Delimiter for ignore the command The module s host watchdog timeout status is set and the output is set to Safe Value Example Command 021001 Receive gt Assume module is EX9044D set address 02 output channel 0 on return Success Command 021001 Receive gt Assume module is EX9044D set address 02 output channel 0 on return ignore The module s host watchdog timeout status is set and the output is set to Safe Value 2 4 HAAN Description Read Digital Input Counter from channel N Syntax AAN CHK cr delimiter character AA address of reading response module 00 to FF N channel to read Response Valid Command gt Data Invalid Command AA Data digital input counter value in decimal from 00000 to 99999 Example Command 032 Rec
19. the DI counter value 04 05 Output value 2 Bytes A value of OxFFOO sets the output to ON A value of 0x0000 set it to OFF All other values are illegal and won t affect the coil Response 00 Address 1 Byte 1 247 01 Function code 1 Byte 0x05 02 03 Output channel 2 Bytes The value is the same as byte 02 and numbers 03 of the Request 04 05 Output value 2 Bytes The value is the same as byte 04 and 05 of the Request Error Response 00 Address l Byte 1 247 01 Function code l Byte 0x85 02 Exception code l Byte Refer to the Modbus standard for more details 42 15 0x0F Write Digital Output Clear DI count Value Multi channel Request 00 Address l Byte 1 247 01 Function code 1 Byte OxOF 02 03 Starting channel 2 Bytes 0x0000 0x0007 for output channel 0x0200 0x0203 to clear the DI counter value 0x0080 0x0087 for Safe value 0x00A0 0x00A7 for Power on value 04 05 Input Output 2 Bytes Input 0x0001 0x0004 channel numbers Output 0x0001 0x0008 06 Byte count 1 Byte l 07 Output 1 Byte 0x00 0xFF value Clear DI A bit corresponds to a channel When the bit is count value 1 it denotes that the value of the channel that was set is ON if the bit is 0 it denotes that the value of the channel that was set is OFF Response 00 Address l Byte 1 247 01 Function code 1 Byte OxOF 02 03 Starting channel 2 Bytes The value is the same as byte 02 and
20. tion code 1 Byte Refer to the Modbus standard for more details 45 03 0x03 Send Host OK Request 00 Address 1 Byte 1 247 01 Function code 1 Byte 0x03 02 03 Starting channel 2 Bytes 0x3038 04 05 Input channel numbers 2 Bytes 0x0000 No Response 04 0x04 Send Host OK Request 00 Address 1 Byte 1 247 01 Function code 1 Byte 0x04 02 03 Starting channel 2 Bytes 0x3038 04 05 Input channel numbers 2 Bytes 0x0000 No Response 46 05 0x05 Set WDT timeout Clear WDT timeout status Request 00 Address 1 Byte 1 247 01 Function code 1 Byte Ox05 02 03 Output channel 2 Bytes 0x0104 Set WDT timeout number enable disable 0x010D Clear WDT timeout status 04 05 Output value 2 Bytes OxFFOO for WDT timeout enable 0x0000 for WDT timeout disable OxFFOO for Clear WDT timeout status Response 00 Address 1 Byte 1 247 01 Function code 1 Byte Ox05 02 03 Output channel 2 Bytes The value is the same as byte 02 and numbers 03 of the Request 04 05 Output value 2 Bytes The value is the same as byte 04 and 05 of the Request Error Response 00 Address 1 Byte 1 247 01 Function code 1 Byte Ox85 02 Exception code 1 Byte Refer to the Modbus standard for more details 47 06 0x06 Set WDT timeout Value
21. tus return host watchdog timeout status is clear Command 013164 Receive 01 Set address 01 host watchdog timeout value 10 0 seconds and enable host watchdog return success Command 012 Receive 01164 Read address 01 host watchdog timeout value return that host watchdog is enabled and time interval is 10 0 seconds Command No response Reset the host watchdog timer Wait for about 10 seconds and don t send command the LED of module will go to flash The flash LED indicates the host watchdog timeout status is set Command 010 Receive 0104 Read address 01 module status return host watchdog timeout status is set Command 012 Receive 01064 Read address 01 host watchdog timeout value return that host watchdog is disabled and time interval is 10 0 seconds Command 011 Receive 01 Reset address 01 host watchdog timeout status return success And the LED of this module stop flash Command 010 Receive 0100 Read address 01 module status return host watchdog timeout Status is clear 2 24 AA4V Description Read Power On Safe Value Syntax AA4V CHK cr delimiter character AA address of reading response module 00 to FF 4 command for read Power On Safe value V P read Power On Value S read Safe Value Response Valid Command AA Data Invalid Command AA Data Power On Value or Safe Value For EX9042D 43D Data is VVVV where VVVV is the Power On Value or Safe Value For oth
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