Modbus Rtu/Ascii Over Ethernet Tcp Statistics Page - Pepperl+Fuchs ICDM-RX/MOD Manual

ICDM-RX/MOD User Manual
Diagnostics Menu
Dropped Message/Response
Count
Invalid Message/Response
Count
Device Timeouts
Blocked Write Messages

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.
TX Byte Count (To Application)
TX Response Count
Dropped TX Responses
RX Byte Count (From
Application)
RX Message Count
Dropped RX Messages Due to
Congestion
Dropped Invalid or Incomplete RX
Messages
Dropped RX Messages Due to
Invalid CRCs
Remote Connection Status
Serial Communication Statistics Page (Continued)
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).
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.
Displays the number of device timeouts that occurred when there was no
response for a Modbus message.
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
The number of bytes transmitted out of the TCP/IP connection(s).
The number of responses transmitted out of the TCP/IP connection(s).
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.
The number of bytes received on the TCP/IP connection(s).
The number of messages received on the TCP/IP connection(s).
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.
The number of messages from the application(s) that were dropped to:
• Containing an invalid Modbus message format.
• Containing an incomplete Modbus message.
The number of messages from the application(s) that were dropped due to
an invalid Modbus/RTU CRC or Modbus/ASCII LRC.
Displays remote TCP/IP connections.
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