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5
PREPARATORY PROCEDURES BEFORE
OPERATION
5.5 Self-diagnostic Test
5 - 12
1
OVERVIEW
2
SYSTEM
CONFIGURATION
3
SPECIFICATIONS
4
FUNCTIONS
5
PREPARATORY
PROCEDURES BEFORE
OPERATION
6
LINK DATA SEND/
RECEIVE PROCESSING
AND PROCESSING TIME
7
PROGRAMMING
8
TROUBLESHOOTING
5.5 Self-diagnostic Test
The self-diagnostic test checks the hardware or cable wiring of a local module.
Table 5.4 Items of self-diagnostic test
Item Description
Reference
section
Self-loopback test Checks the hardware including transmission circuit in a single local module.
Section
5.5.1
Station-to-station test (Executing station) Checks a line between two adjacent stations.
A test is performed to a line between two stations assuming that the station
which has the small station No. is the executing station and the other is the
other station.
Section
5.5.2
Station-to-station test (Other station)
Forward loop test
(Not provided for the MELSECNET/B)
Checks a forward loop side line of the MELSECNET after connecting all
stations by a cable.
Section
5.5.3
Reverse loop test
(Not provided for the MELSECNET/B)
Checks a reverse loop side line of the MELSECNET after connecting all
stations by a cable.