Monitoring The Special Link Relays And Special Link Registers - Mitsubishi MELSEC-A Series Reference Manual

10. TROUBLESHOOTING

10.2 Monitoring the Special Link Relays and Special Link Registers

Faulty stations in the MELSECNET data link system can be detected by using the A7PU to
monitor the special link relays and special link registers.
When the GPP/IBM PC/AT is available, detect them by using the link monitoring in Section
10.1.
Refer to Section 9.2 and Section 9.3 for details on special link relays and special link
registers.
MELSECNET mode MELSECNET
MELSECNET
MELSECNET
Operating Mode
mode
mode
Applicability
10 - 13
MELSECNET/B
MELSECNET
MELSECNET MELSECNET MELSECNET
composite mode mode mode composite mode