Pepperl+Fuchs ICDM-RX/MOD, Руководство пользователя

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ICDM-RX/MOD User Manual
Diagnostics Menu
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6.2. Modbus RTU/ASCII over Ethernet TCP Statistics Page
Click
Diagnostics | Communication | TCP Statistics
to access the Modbus RTU/ASCII over Ethernet TCP
Statistics page.
The following table provides information about Ethernet TCP/IP interface statistics on the Modbus RTU/ASCII
over Ethernet TCP Statistics page.
Dropped Message/Response
Count
Displays the number of messages or responses dropped to any of the
following:
• Incomplete message or response.
• Did not receive valid start and/or end characters (Modbus/ASCII
only).
Invalid Message/Response
Count
Displays the number of invalid messages or responses received to any of
the following events:
• Message received after the timeout period. This may require
increasing the
Device Response Timeout
.
• Incorrect device ID in response message.
• Incorrect function code in response message.
Device Timeouts
Displays the number of device timeouts that occurred when there was no
response for a Modbus message.
Blocked Write Messages
Displays the number of Modbus write messages that were not
transmitted as a result of the
Disable Writes (Read Only)
option being set.
Modbus RTU/ASCII over Ethernet TCP Statistics Page
TX Byte Count (To Application) The number of bytes transmitted out of the TCP/IP connection(s).
TX Response Count The number of responses transmitted out of the TCP/IP connection(s).
Dropped TX Responses
The number of responses that were intended to be transmitted out the
TCP/IP connection(s) but could not be and were dropped. This typically
occurs when one or more connections close unexpectedly.
RX Byte Count (From
Application)
The number of bytes received on the TCP/IP connection(s).
RX Message Count The number of messages received on the TCP/IP connection(s).
Dropped RX Messages Due to
Congestion
The number of messages that were dropped to the gateway being overly
congested. This typically occurs when the application(s) send messages
faster than the slave device(s) can respond.
Dropped Invalid or Incomplete RX
Messages
The number of messages from the application(s) that were dropped to:
• Containing an invalid Modbus message format.
• Containing an incomplete Modbus message.
Dropped RX Messages Due to
Invalid CRCs
The number of messages from the application(s) that were dropped due to
an invalid Modbus/RTU CRC or Modbus/ASCII LRC.
Remote Connection Status Displays remote TCP/IP connections.
Serial Communication Statistics Page (Continued)