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CTI 2572 Installation and Operation Guide
102
PLC Server Error Codes
The following error codes may be returned by the PLC server or by a CAMP server operating on a
serial port. The codes will be displayed only if the server was started by PLC logic.
Some error codes are described as “information only”. They will be displayed only if you start the
Network Server using the Start Network Server command. “Information Only” errors are not caused
by PLC logic; they are the result of a problem with the client device. Therefore, the PLC Err bit will
not be set. The server will also return an error code to the client, who must handle error recovery.
HEX DEC DESCRIPTION SOLUTION
236E 9070 NITP PROTOCOL ERROR
The 2572 received an invalid NITP message.
NITP protocol errors include:
- Odd number of characters received,
- Invalid characters received,
- Checksum error,
- Incorrect character count field.
This error is for information only.
No action is required at the 2572/PLC.
The 2572 will send an error message to the
remote device. The remote device is
responsible for error recovery.
This error may occur due to communications
error (line noise, etc.) on serial lines. It may
also result from an improperly programmed
remote device.
If the error persists, check out the remote
device.
2370 9072 INVALID OPTION BIT
The option bit setting is invalid when
compared to the other parameters in the
command block.
Correct the option bit setting or change the
conflicting parameters.
2379 9081 INVALID SUBNET MASK
The subnet mask that you entered was invalid
for the IP address you have assigned to the
module. See appendix D.
Correct the subnet mask entry.
237A 9082 INVALID DEVICE CODE
The 2572 received a CAMP message with an
invalid device code.
This error is for information only.
No action is required at the 2572/PLC.
The 2572 will send an error message to the
remote device, which is responsible for error
recovery and corrective action.
237B 9083 INVALID DELIMITER - CAMP PROTOCOL
The 2572 received a CAMP message with an
invalid message delimiter.
This error is for information only.
See error 237A above.