Appendix
A-9
A.2.2 Error code for dedicated slave communication
For dedicated mode communication, the station operated by slave responds via ACK or NAK frame. And NAK
responds including error code in NAK frame to distinguish error types. The following table is for error codes for NAK
response used in slave station of dedicated communication.
Error code
Error type
Contents
Action to take
0001
PLC system error
Interface with PLC impossible
Power On/Off
0011 Data
error
Error occurred when ASCII data value is
converted into digits
Check if other character than
upper/lower cases (‘%’,’_’,’.’),
and digits has been used as
variable name or data, correct
and execute again.
1132
Device memory error
Wrong device memory specified
Inspect device type
1232
Data size error
Execution data number exceeding 120
Bytes
Correct data length
1332
Data type error
Data types mismatch between variables Equalize data types
1432
Data value error
Data value not digits
Inspect data value
2432
Data type error
Data type mismatch with actual variable
Equalize variable and data type
of PLC program
1152
Remote control
not allowed
‘Remote Acdess Right’ not allowed in
PLC parameter.
Set Remote Acdess Right to
allowed, and then execute again.
7252
PLC not operated
No PI to operate PLC
Create PI with PI creation
command.
2652
PI not created
No Domain in PLC
Download Domain to PLC.
4252
1) Operation mode
change error
2) PI created already
1) Mode status
.RUN => PI_STOP Only
.PAUSE=>PI_RESET,PI_RESUME
.STOP=>PI_START Only
.DEBUG<-->PI_RESET Only
Other errors when changing operation
mode
2) Execute PI creation in state of PI
created already
1) Execute again with
changeable operation mode.
2) Execute after PI deleted