ABB NMBA-01 Installation And Startup Manual page 49

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NMBA-01 Installation and Start-up Guide
RESPONSE
Field Name
Header
Slave Address
Function
Byte Count
Data Hi
Data Lo
Data Hi
Data Lo
Data Hi
Data Lo
Error Check
Trailer
Figure B-4 Slave Response with RTU Framing
Appendix B – Modbus Protocol
Example RTU
(Hex) 8-Bit Field
None
06 0000 0110
03 0000 0011
06 0000 0110
02 0000 0010
2B 0010 1011
00 0000 0000
00 0000 0000
00 0000 0000
00 0000 0000
CRC (16 bits)
None
Total Bytes: 11
B-11