Comtrol UP DeviceMaster User Guide - Manual (Page 97)

DeviceMaster UP Modbus/TCP User Guide: 2000447 Rev. I Chapter 4. Diagnostic and Statistics Pages - 97
PLC Interface Diagnostics
PLC Interface Diagnostics (cont.)
Unexpected Event
Errors
Displays the number of unexpected event errors. Unexpected event errors
occur when the DeviceMaster UP receives an unexpected message from the
PLC such as an unexpected response or unknown message.
Unsupported CIP
Request Instance Errors
Displays the number of unsupported CIP request instance errors. These
errors occur when a message with an invalid instance is sent to the
DeviceMaster UP.
Unsupported CIP
Request Service Errors
Displays the number of unsupported CIP request instance errors. These
errors occur when a message with an invalid service is sent to the
DeviceMaster UP.
Unsupported CIP
Request Class Errors
Displays the number of unsupported CIP request instance errors. These
errors occur when a message with an invalid class is sent to the
DeviceMaster UP.
Unsupported CIP
Request Attribute
Errors Displays the number of unsupported CIP request instance errors. These
errors occur when a message with an invalid attribute is sent to the
DeviceMaster UP.
Improper Configuration
Errors
Displays the number of improper configuration errors. These errors occur
when the DeviceMaster UP receives a message that cannot be performed
due to an invalid configuration.
Invalid Message Data
Errors
Displays the number of invalid message data errors. These errors occur
when the DeviceMaster UP receives a message that cannot be performed
due to invalid data.
System Resource Errors
Displays the number of system resource errors. These errors indicate a
system error on the DeviceMaster UP such as an inoperable serial port or a
full transmit queue. These errors typically occur when the PLC(s) are
sending data to the DeviceMaster UP faster than the DeviceMaster UP can
process it.
Oversized Received
Data Packet Errors Displays the number of received Ethernet data packets that were larger
than the configured maximum receive data packet.
Writes to Offline
Ethernet Device on
Socket N
Displays the number of write attempts by a PLC to the Ethernet device
when the device was offline.
First Error Description Text description of the first error that occurred.
Last Error Description Text description of the last or most recent error that occurred.