Wieland ricos FLEX BC MODBUS User Manual page 53

Read n Words 03h, 04h
03h: Read n words of master output area 4x.
04h: Read n words master input area 3x.
Command telegram
Modbus/TCP-Header Slave address
x x 0 0 0
6 byte
Respond telegram
Modbus/TCP-Header Slave
x x 0 0 0
6 byte
Write 1 Bit 05h
Code 05h: Write 1 bit to master output area 0x.
A status change is via 'Status bit' with following values:
'Status bit' = 0000h  Bit = 0
'Status bit' = FF00h  Bit = 1
Command telegram
Modbus/TCP-Header Slave address
x x 0 0 0
6 byte
Respond telegram
Modbus/TCP-Header Slave address
x x 0 0 0
6 byte
Write 1 Word 06h
Code 06h: Write 1 word to master output area 4x.
Command telegram
Modbus/TCP-Header Slave address
x x 0 0 0
6 byte
Respond telegram
Modbus/TCP-Header Slave address
x x 0 0 0
6 byte
Wieland Electric GmbH | BA001269 | 09/2021 (Rev. A)
Function code
6
1 byte
Function
address code
1 byte 1 byte
Function code
6
1 byte
Function code
6
1 byte
Function code
6
1 byte
Function code
6
1 byte
Address word
1 byte 1 word
Number of Data
read bytes 1. word
1 byte 1 word
max. 126 words
Address bit
1 byte 1 word
Address bit
1 byte 1 word
Address word
1 byte 1 word
Address word
1 byte 1 word
Deployment
Number of words
1 word
Data
...
2. word
1 word
Status bit
1 word
Status bit
1 word
Value word
1 word
Value word
1 word
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