Modbus Tcp Error Codes - ABB PCS100 AVC-20 User Manual

88 PCS100 AVC-20 User Manual
Address Name
1002 Start
Command
1004 Stop
Command
1006 Output
Voltage
Setpoint
1007 Test Register
10.3.4

Modbus TCP Error Codes

The following error codes may be returned by the Modbus TCP server.
Code Name
1 Illegal Function
2 Illegal Data Address
3 Illegal Data Value
4 Slave Device Failure
6 Slave device Busy
Access Type
Read/Write 16-bit,
Enum
Read/Write 16-bit,
Enum
Read/Write 16-bit,
Signed
Read/Write 16-bit,
Signed
Table 10-1: PCS100 AVC-20 Modbus TCP User Parameters
Description
Function code received in the query is not supported by this
Modbus TCP server or the query is badly formatted.
The data address received in the query is not a valid address in
the Modbus TCP server. Specifically, the combination of address
and number of registers is not valid.
–
–
–
–
The value received in the query is not an allowable value for this
register or the implied length is invalid.
–
–
An unrecoverable error occurred while server attempted to
perform requested action.
–
–
–
The Modbus TCP server is unable to process this command at
present. Retry this command again later.
–
Table 10-2: PCS100 AVC-20 Modbus TCP error codes
Raw Value & Scaling
0 = No Action
1 – Start
0 = No Action
1 = Stop
Voltage (line-to-line RMS volts) = raw value
x rated voltage / 8192
Dummy read / write register for testing
Register not known by the PCS100 AVC-20
Register is not in Modbus TCP configuration table
Not all registers of a single parameter accessed
Register / length mismatch
Value out of range for parameter
Number of registers requested exceeds max.
Read/Write access violation
GDM hardware issues
Insufficient access privileges
GDM VCAN server busy or unavailable