Panasonic FP3 Technical Manual page 106

7-2. Remote I/O Control When an Error Occurs
J When the station monitor LED is flashing
<Error condition: Communications is not possible
with the slave station indicated by
the flashing LED.>
Error example
Master
station Station
No. 0
Station monitor LEDs
0
1
2
ON
3
4
5
6
7
Confirm the unit type (input or output) of the LED
using the selector for the station monitor LEDs.
Make sure power is properly supplied to the slave
station indicated by the flashing LED.
Check the wiring and look for looseness of
terminal screws.
Check the transmission cable for correct wiring.
See page 43 about wiring with transmission
cable.
If there is a break in the transmission cable,
change the cable.
100
Slave stations
Station Station
No. 4 No. 6
Disconnection
8
9
A
B
Flashing
C
D
E
F
J When the station monitor LED is OFF
<Error condition: No communications with the slave
station indicated by the unlit LED
since the system began operation.>
Error example
Master
station Station
No. 0
Station monitor LEDs
0
1
2
ON
3
4
5
6
7
Confirm the unit type (input or output) of the LED
using the selector for the station monitor LEDs.
Make sure power is properly supplied to the slave
station indicated by the unlit LED.
Check the wiring and look for looseness of
terminal screws.
Check the transmission cable for correct wiring.
See page 43 about wiring with transmission
cable.
If there is a break in the transmission cable,
change the cable.
Slave stations
Station Station
No. 4 No. 6
No power supply
8
9
A
B
OFF
C
D
E
F