These errors indicate that OPC Server has established communication to the PLC, but an error is preventing the command from being executed by the PLC.
|
Error Code |
Description |
Cause |
|
1 |
Command cannot be sent in RUN Mode |
The PLC Mode has changed from MONITOR to RUN after while the server was running. |
|
2 |
Not executable in MONITOR Mode |
The command is not supported in MONITOR Mode. |
|
3 |
User Memory Write-Protected |
The User Memory Write-Protect DIP switch on the CPU is ON |
|
4 |
Address Over |
The Memory Area address is not supported by the CPU |
|
11 |
Not executable in PROGRAM Mode. |
The command cannot be executed while the PLC is in PROGRAM mode. |
|
19 |
FCS Error |
An error has occurred in the Frame Check Sum |
|
20 |
Format Error |
The command has an incorrect format |
|
21 |
Data Error |
The data is outside the specified range |
|
22 |
Command Not Supported |
The TIM/CNT register does not exist in the PLC |
|
24 |
Frame Length Error |
The packet lenth exceeds the maximum allowable |
|
25 |
Not executable |
The TIM/CNT exceeded 9999, or a I/O memory batch read was executed |
|
33 |
CPU Unit Error |
Command could not be executed due to a error in the CPU Unit |
|
35 |
User Memory Read/Write-Protected |
The User Memory Write protect switch is turned ON. |