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10-2
Echoback Test between Nodes
10-2-1
Overview
10-2 Echoback Test between Nodes
10-2-1
Overview
The Internode Echoback Test between PLC Nodes tool is used to execute echoback
tests between specified networks and nodes and the CX-Integrator. Echoback tests
can be executed for Ethernet, Controller Link, SYSMAC LINK, or DeviceNet networks.
A specified data length (unit: bytes) is sent to a specified network and node. The data
is sent back as is (echoback), and the results are compared. If the data agrees, it is
judged a success. If not, it is judged a failure. This allows the communications load
conditions between the computer and specified nodes to be tested.
10-2-2
Start Methods
Either of the following two methods can be used to start an echoback test:
Method 1: While online, open the Online Connection Information Window, right-click
the target PLC or Unit, and select Echoback test between PLC nodes from the
pop-up menu.
Method 2: While online, select Tools - Echoback test between PLC nodes.
10-2-3
PLC Internode Echoback Test Dialog Box
The various items in the PLC Internode Echoback Test Dialog Box are explained
below.
10-22
Field
Item
Target
Network
Node
Test
Data Length
Configuration
Times to
Repeat
Frequency is
not specified
Response
wait time
Connection
Network
Node
Model
Status
Test Results
Elapsed time
Tests run
Contents
Input the network address. Range: 1 to 127.
Input the node address. Range: 1 to 254.
Input the number of bytes of data to be sent between
nodes. Range: 1 to 256.
Input the number of times to repeat the test.
Range: 1 to 255.
Check this item to repeat the tests limitlessly.
Input the time to wait for the echo request packet.
Range: 1 to 30.
Displays the target network address.
Displays the target node address.
Displays the target model.
Displays the online status.
Displays the time elapsed for the test.
Displays the number of times the test has been run.
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