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Modbus services
4
Modbus services
What's in this Chapter?
This chapter contains the following topics:
Topic Page
Principle of the Modbus protocol 32
RTU mode 32
Modbus functions available 33
Read one word (03) 33
Read indirect block (3) 34
Write Single Register (6) 36
Write multiple registers (16) 37
Write indirect block (16) 38
Read Device Identification (43/14) 40
Error response 41