WP9038ADAM User’s Manual V1.42
0769
0000
0000
0000
0000
0000
16 read data 0769-read data from the first analog input
0000-read data from the second analog input
0000-read data from the third analog input
0000-read data from the fourth analog input
0000-read data from the fifth analog input
0000-read data from the sixth analog input
B626 2 CRC check code CRC check code for all data
The recieved command means the data of the first analog input is “0769”,and it is equal to 1897 in decimal,then substitute into
the fomula: I=(DATA*20)/4095=(1897*20)/4095≈9.26mA.The current in the other channel is 0mA.
5.3
、
Command for digital input collection
：
Send: 01 02 00 00 00 04 79 C9
（
example/hexadecimal
）
data byte data description remark
01 1 module address Address range 01-FE
02 1 function code 02-read input bit
0000 2 input address(1x mode) 0000-initial address of input bit
0004 2 read length of input bit 0004-read 4 input bits
79C9 2 CRC check code CRC check code for all data
Receive: 01 02 01 05 61 8B
（
example/hexadecimal
）
data byte data description remark
01 1 module address Address range 01-FE
02 1 function code 02-read input bit
01 1 byte numbers 01-read one byte length
05 1 read data 05-read input bit status
618B 2 CRC check code CRC check code for all data
Converting reading data “05” to 2 hexadecimal results “00000101”, last 4 numbers are active. From left to right, it represents
the 4 digital input channel status DI_04~ DI_01. Here it means DI_03
、
DI_01 have input but others no.
5.4
、
Command for digital output (several controls)
：
Send: 01 0F 00 00 00 04 01 03 7E 97
（
example/hexadecimal
）
data byte data description remark
01 1 module address Address range 01-FE
0F 1 function code 0F-write multiple coil
0000 2 coil address(0x mode) 0000-initial address of coil
0004 2 write coil length 0004-write 4 coils
01 1 write data byte 01-write one byte data
03 2 data writing 03-write output state of 4 coil
7E97 2 CRC check code CRC check code for all data
Receive: 01 0F 00 00 00 04 54 08
（
example/hexadecimal
）
Converting reading data “03” to 2 hexadecimal results “0000 0011”, last 4 numbers are active. From left to right, it represents
the 4 digital output channel status DI_04 ~ DI_01. Here it means DO_02
、
DO_01 have output but others no. When module
receives correct command, it will make corresponding actions and send response back to the master. This is successful
communication.
5.5
、
Command for digital output (single control)
：
Send: 01 05 00 00 FF 00 8C 3A
（
example/hexadecimal
）
data byte data description remark
01 1 module address Address range 01-FE
05 1 function code 05-write single coil
0000 2 coil address(0x mode) 0000-digital output(DO_01)coil address
0001-digital output(DO_02)coil address
0002-digital output(DO_03)coil address
0003-digital output(DO_04)coil address
FF00 2 data writing
FF00-coil open
，
0000-coil close
8C3A 2 CRC check code CRC check code for all data
Receive: 01 05 00 00 FF 00 8C 3A
（
example/hexadecimal
）
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