JUMO mTRON T Manual page 36

3 Modbus protocol description
3.6.5 Write n words
Instruction
Slave address
1 byte
Response
Slave address
1 byte
Example
Writing the word "test" (ASCII code: 0x54 0x65 0x73 0x74 0x00) starting with the word address
0x13F1, so that this text is written as an external batch text 1 for the multifunction panel inter-
face 1 (coming from the central processing unit) to the multifunction panel.
 Chapter 7.2 "Central processing unit addresses", page 77
Instruction:
01
Slave
Response:
01
Slave
36
Function Address of
0x10 first word
1 byte 2 bytes
Function Address of
0x10 first word
1 byte 2 bytes
10 13 F1
Function Address of
the 1st word
10 13 F1
Function Address of
the 1st word
Number of Number of
words bytes
2 bytes 1 byte
Number of
words
2 bytes
00 03 06
Number of Number of
words bytes
00 03 F5 80
Number of CRC
words
Word Checksum
value(s) CRC
x bytes 2 bytes
Checksum
CRC
2 bytes
54 65 73 74 00 00 40 F2
Text in ASCII CRC