CLRS Series RS485 Closed Loop Stepper Drive User Manual
4.2.1 Read Holding Registers FC= 03
Example A: Read the value of a single register--peak current
Send message: 01 03 01 91 00 01 D3 1B
Receive message: 01 03 02 00 0A 38 43
Details as following: Master->slave data:
Slave->master data:
Note: 0x0191-- output peak current, 000A(Hexadecimal)=10(decimal, unit: 0.1A), it means the current 1A.
Example B: Read multiple register values
Send message: 01 03 01 BC 00 06 05 D0
Receive message: 01 03 0C 00 00 00 02 00 00 00 01 00 00 00 04 B6 13
Details as following: Master->slave data:
Slave>master data:
Read Holding Registers Query (Master to
Slave)
Read Holding Registers Response (Slave to Master)
Address of beginning register
to be read
Number of data bytes in
message
Total number of registers to
be read
Data from registers (2 bytes
per register)
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