Panasonic FP2

What to Check If a Problem Occurs FP2 Multi-wire Link Unit
A-6
A.4 What to Do If a Transmission Error Occurs
A.4 What to Do If a Transmission Error Occurs
Condition
A transmission error is occurring.
Procedure 1
Check to see if the communication cables have been securely connected to the trans-
mission terminals of the various units, with positive (+) terminals connected to positive
(+) terminals and negative (-) terminals to negative (-) terminals.
Transmission
terminal (RS485)
Transmission cable Transmission cable
(Shield) (Shield)
Transmission
terminal (RS485)
Transmission
terminal (RS485)
(RS485 interface) (RS485 interface) (RS485 interface)
Procedure 2
Check to see if the transmission cables are within the specifications range, referring to
FP2 Multi-wire Link Unit hardware manual Section 1.2.4.
At this point, make sure all of the cablesin the link are of the same type, and that multiple
types of cables are not being used.
.
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