Bandwidth Diagnostics
(Original Document)
About us
Introduction
Use the Bandwidth Diagnostic page to display either dynamically generated or static data for the communication module’s bandwidth usage.
Use the Refresh Every 500ms checkbox to display static or dynamic data, as follows:
When the checkbox is...
This page...
Selected
  • Displays data that is dynamically updated every 500 ms, and
  • Increments the number at the top of the table each time data is refreshed
De-selected
  • Displays static data, and
  • Does not Increment the number at the top of the table, which instead displays a constant value
NOTE: Before you can open the Diagnostic window, connect the DTM for the target communication module to the physical module itself. To do this, select the module node in the DTM Browser, then select Edit → Connect.
The Bandwidth Diagnostic page looks like this:
To open this page:
Step
Action
1
In the DTM Browser, select the communication module and click the right mouse button. A pop-up menu opens.
2
In the menu, select Device menu → Diagnostic. The Diagnostic window opens.
3
In the left pane of the Diagnostic window, select the communication module node.
4
Click on the Bandwidth Diagnostic tab to open that page.
Bandwidth Diagnostic Parameters
The Bandwidth Diagnostic 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, since the last reset, in packets/second.
EtherNet/IP Received
The number of EtherNet/IP packets the module has received, since the last reset, in packets/second.
Modbus TCP Requests
The number of Modbus TCP requests the module has sent, since the last reset, in packets/second.
Modbus TCP Responses
The number of Modbus TCP responses the module has received, since the last reset, in packets/second.
I/O - Adapter:
EtherNet/IP Sent
The number of EtherNet/IP packets the module has sent—in the role of a local slave—since the last reset, in packets/second.
EtherNet/IP Received
The number of EtherNet/IP packets the module has received—in the role of a local slave—since the last reset, in packets/second.
I/O - Module
Module Capacity
The maximum number of packets that the module can process, in packets per second.
Module Utilization
The percentage of communication module capacity being used by the application.
Messaging - Client:
EtherNet/IP Activity
The number of I/O messages sent by the module—using the EtherNet/IP protocol—since last reset, in packets per second.
Modbus TCP Activity
The number of I/O messages sent by the module—using the Modbus TCP protocol—since last reset, in packets per second.
Messaging - Server:
EtherNet/IP Activity
The number of I/O messages received by the module—using the EtherNet/IP protocol—since last reset, in packets per second.
Modbus TCP Activity
The number of I/O messages received by the module—using the Modbus TCP protocol—since last reset, in packets per second.
Module:
Processor Utilization
The percent of Ethernet communication module processor capacity used by the present level of communication activity.