Communication Module Bandwidth Diagnostics
Original instructions
About us
Introduction
Use the Bandwidth page to view the dynamic and static data for the bandwidth use by the Ethernet communications module.
NOTE: Before you can open the diagnostics page, make the connection between the DTM for the target communication module and the physical module.
Open the Page
Access the Bandwidth information:
Step
Action
1
In the DTM Browser, find the name that is assigned to your Ethernet communications module.
2
Right-click on the module name.
3
Scroll to Device menu → Diagnosis.
4
In the left pane of the Diagnosis window, select the communication module node.
5
Select the Bandwidth tab to open that page.
Data Display
Use the Refresh Every 500ms checkbox to display the static or dynamic data:
Checkbox
Description
Selected
  • Display data that is dynamically updated every 500 ms.
  • Increment the number at the top of the table each time data is refreshed.
De-selected
  • Display static data.
  • Do not increment the number at the top of the table. That number now represents a constant value.
Bandwidth Diagnostic Parameters
The Bandwidth page displays the following parameters for the communication module:
Parameter
Description
I/O - Scanner:
EtherNet/IP Sent
The number of EtherNet/IP packets the module has sent in packets/second.
EtherNet/IP Received
The number of EtherNet/IP packets the module has received in packets/second.
Modbus TCP Received
The number of Modbus TCP requests the module has sent in packets/second.
Modbus TCP Responses
The number of Modbus TCP responses the module has received in packets/second.
I/O - Adapter:
EtherNet/IP Sent
The number of EtherNet/IP packets (per second) the module has sent in the role of a local slave.
EtherNet/IP Received
The number of EtherNet/IP packets (per second) the module has received in the role of a local slave.
I/O - Module
Module Capacity
The maximum number of packets (per second) that the module can process.
Module Utilization
The percentage of communication module capacity being used by the application.
Messaging - Client:
EtherNet/IP Activity
The number of explicit messages (packets per second) sent by the module using the EtherNet/IP protocol.
Modbus TCP Activity
The number of explicit messages (packets per second) sent by the module using the Modbus TCP protocol.
Messaging - Server:
EtherNet/IP Activity
The number of server messages (packets per second) received by the module using the EtherNet/IP protocol.
Modbus TCP Activity
The number of server messages (packets per second) received by the module using the Modbus TCP protocol.
Module:
Processor Utilization
The percent of Ethernet communication module processor capacity used by the present level of communication activity.