54
4 PROCEDURE BEFORE OPERATION
4.7 Tests After Wiring
4.7
Tests After Wiring
This section describes loop and cable tests that should be performed after network wiring.
Perform these tests to the actual operating network configuration.
Loop test
The loop test checks the network cable connection status and line status from master station and the parameter setting status
of each station. Confirm whether the network is operating correctly by performing loop test before data link.
The test allows checking the following items.
Executing loop tests
The following explains a procedure for loop test, assuming the executing station (master station) is the CC-Link IE Field
Network board and the target station (local station) as the CC-Link IE Field Network module.
The loop test can be executed only when the CC-Link IE Field Network board is the master station.
When it is the local station, execute the test from the master station in the network system to which the local
station is connected.
■
Preparing loop tests
Prepare the following before loop test.
Operating procedure
1.
Check for the power discontinuity
Turn OFF the personal computer.
Turn OFF the module.
2.
Cable connection
Connect Ethernet cables to each station.
3.
Turn-ON
Turn ON the personal computer.
Turn ON the module.
■
Executing loop tests
The executing station (master station) performs a loop test.
Operating procedure
Item
Description
Master station duplication check
Check if master stations on the network are duplicated.
Station number duplication check
Check if stations on the network are duplicated.
Out-of-range station No. check
Check if slave stations exceeding the number of slave stations set for the master station are connected.
Reserved station specification check
Check if specified reserved stations are actually connected.
Consistency check of the number of connected
stations
Consistency check for the number of total slave stations set by parameters and actual connected slave
stations.
Station type check
Consistency check for the station type of slave stations set in master stations and actual connected station
type.
Loopback check
Detect if loopback is being performed while "Use" is set for "Loopback Function Setting" in the Network
Parameter of the master station.
1.
Select a board to be tested on the "Board Diagnostics"
screen in CC IE Field Utility (
Summary of Contents for MELSEC Q80BD-J71GF11-T2
Page 2: ......
Page 6: ...4 Disposal Precautions CAUTION When disposing of this product treat it as industrial waste ...
Page 118: ...116 12 MONITORING MEMO ...
Page 140: ...138 14 MELSEC DATA LINK LIBRARY MEMO ...
Page 142: ...140 15 PROGRAMMING 15 1 Precautions on Programming MEMO ...
Page 243: ...241 I U Utility 83 ...
Page 247: ......
