Ampcontrol ELV-PRO, User Manual, Page: 56 / 59

Ampcontrol Pty Ltd
– ABN 28 000 915 542
ELV-PRO USER MANUAL
MAG-219 Version 5
– NOVEMBER/2020
Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version Page 56 of 59
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APPENDIX D: ELV-PRO Modbus TCP
D1 Modbus Commands
The following Modbus commands are supported:
Table 10: Modbus Commands
Modbus CMD Comment
03 Read Holding Registers
06 Store Single Register
Valid read registers are in the range from 4 to 109. An attempt to read a register outside this range will
result in an exception scan. Supported Modbus exception responses are:
Table 11: Modbus Exception
Modbus Exception Comment
01 Illegal Function
02 Illegal Data Address
03 Illegal Data Value
D2 Modbus Status
Table 12: Modbus Status
Status Comment
Address
The Modbus slave address the ELV-PRO is set
to
Read
A solid block when a READ command is
received
Wrt
A solid block when a WRITE command is
received
Exc
A solid block when an unsupported Modbus
command is received
CRC
A solid block when a checksum error is
detected
Par A solid block when a parity error is detected
NE A solid block when noise is detected
FE A solid block when a framing error is detected