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RSTi-OM User Manual
GFK-3212A
Modbus/TCP Diagnostics
ISDU Requests When Port
Offline
Valid ISDU Responses From
Port
ISDU Response Timeouts
Unexpected ISDU Responses
Maximum ISDU Request Msg
Response Time
Average ISDU Request Msg
Response Time
Minimum ISDU Request Msg
Response Time
ISDU Read Commands
ISDU Write Commands
ISDU NOP Commands
9.4
OPC UA Diagnostics Page
The OPC UA Diagnostics page displays status for OPC UA:
1.
2.
Figure 83: OPC UA Diagnostics Page
Note: Not all models support OPC UA.
9.5
MQTT Diagnostic Page
PROFINET IO Reference Information
Whether the OPC UA feature is enabled or disabled
Number of TCP connections
Displays the number of ISDU requests received over
Modbus/TCP when the IO-Link port was offline. This can
occur when:
The IO-Link port is initializing, such as after start-up.
There is no IO-Link device attached to the port.
The IO-Link device is not responding.
Communication to the IO-Link device has been lost.
Displays the number of valid ISDU response messages
returned from the IO-Link port interface and available to
the PLC(s). The response messages contain results to the
ISDU command(s) received in the request message.
Displays the number of ISDU requests that did not
receive a response within the configured ISDU Response
Timeout.
Displays the number of unexpected ISDU responses.
Unexpected responses may occur when an ISDU
response is received after the ISDU request has timed
out. This typically requires setting the ISDU Response
Timeout to a longer value.
Displays the maximum time period required to process
all commands within an ISDU request message. The
response is not available until all ISDU command(s)
contained in the request have been processed.
Displays the average time period required to process the
ISDU request message(s). The response is not available
until all ISDU command(s) contained in the request have
been processed.
Displays the minimum time period required to process
all commands within an ISDU request message. The
response is not available until all ISDU command(s)
contained in the request have been processed.
Displays the number of ISDU read commands received
over Modbus/TCP.
Displays the number of ISDU write commands received
over Modbus/TCP.
Displays the number of ISDU NOP (no operation)
commands received over Modbus/TCP.
Section 9
Jun 2021
100
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