Chapter 12. Diagnostics
GFK-2224Q January 2017 225
SRTP Error Code Description
The mailbox offset specified is invalid.
The backplane task could not be registered because the message response handler
was not specified.
The backplane task could not be registered because the unsolicited mailbox message
handler was not specified.
The backplane task could not be registered because a required parameter was not
specified.
More than the allowable byte length in a single transfer.
Bad sequence number in the request.
Invalid command in request.
Response length does not match length specified in the response qualifier.
Request failed because the PLC’s Service Request Processor is not initialized.
Request failed due to an error in the remote device, most likely running out of Dual-
Port RAM text buffers.
Unable to free dual port memory that was allocated for a connection or block transfer
area.
The backplane task could not be registered because the service request handler was
not specified.
No dual port memory was allocated for the connection or block transfer area needed
to process the request.
Failure to register with backplane driver because the requested task is already
registered.
Request failed because an invalid field was identified in the request mailbox qualifier.
Unable to send request to the PLC because an internal message queue is full.
Unable to send request to the PLC because the text buffer type is invalid.
Unable to send request to the PLC because the mailbox utility function is invalid.
Unable to send request to the PLC because the mailbox message is not specified.
Unable to send request to the PLC because the internal message queue is not
initialized.
Request failed due to mailbox error on remote device. The remote device log will have
more information.
The backplane driver is not initialized.
The backplane driver could not access the PLC.
Request failed due to an invalid parameter detected in the remote device. The remote
device log will have more information.
The specified task is not registered.
Failure to register with backplane driver because the requested task is already
registered.
Unable to find resource necessary for backplane driver to process a service request.
Bad sequence number detected in the service request because it is already in use.
Invalid data detected that prevents backplane driver from completing a request.
More than the allowable byte length in a single transfer.
Memory resource problem detected.
Network buffer resource problem detected.
Error detected while attempting to receive mailbox messages from the PLC.
Timed out waiting to obtain a backplane transfer buffer.
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