Specifications

Response from slave format ;
[23][03][08][8 bytes of data(2 regs x 4 bytes)] [CRC (2 bytes)]
To set both System Volts and System Amps on Node 23h
Packet from the master format :
Start at system voltage (0000), set 2 regs (0004 words)
[23][10][0000][0004][08][8 bytes of data (2 regs x 4 bytes)]
[CRC (2 bytes)]
Response from slave format :
[23][10][0000][0004][CRC(2 bytes)]
Function 17 (11hex) - Report Slave ID
This function returns 10 floating point values.
To obtain ID on Node 23h
Packet from master format :
[23][11][CRC(2 bytes)]
Response from slave format :
[23][11][28][40 bytes of data (10 regs x 4 bytes)][CRC(2
bytes)]
Example. To obtain System Volts & System Amps on Node
23h
Packet from master format :
Start at system voltage (0000), request 2 regs (0004 words)
[23][03][0000][0004][CRC(2 bytes)]
Modbus Report Slave ID Function (code 11h)
This function returns the status of the M550.
The returned packet consists of 10, four byte floating point
numbers.(IEEE754)
1) Identification code of the node.
2) The amount of internal stack that hasn’t been used.
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M550MAN.PM5 01/08/101, 12:4844