Panasonic FP3 Technical Manual page 98

7-2. Remote I/O Control When an Error Occurs
J Abnormal conditions
When communication is not possible with some slave stations (communication is
normal with other slave stations) normal with other slave stations)
<Slave station 2 COM.: ON, Other LEDs: normal status>
Master station
RUN
PROG.
TEST
COM.
BREAK
ALARM
ERROR
BATT.
ALARM
<FP3/FP10S <FP3
CPU> transmitter
master unit>
<Slave station 1 POWER: OFF, COM.: OFF, Other LEDs: normal status>
Master station
RUN
PROG.
TEST
COM.
BREAK
ALARM
ERROR
BATT.
ALARM
<FP3/FP10S <FP3
CPU> transmitter
master unit>
<Slave station 1 COM.: OFF, ALARM: ON, Other LEDs: normal status>
Master station
RUN
PROG.
TEST
COM.
BREAK
ALARM
ERROR
BATT.
ALARM
<FP3/FP10S <FP3
CPU> transmitter
master unit>
92
LED status
Slave station 1
POWER COM. ALARM
Slave station 1
POWER COM. ALARM
No power supply
Slave station 1
POWER COM. ALARM
Communications error
S Check the wiring
between slave
stations.
Slave station 2
POWER COM. ALARM
Disconnection
S Check that power is
properly supplied to
slave station 1.
Slave station 2
POWER COM. ALARM
S Communications error
on slave station 1.
See page 101.
Slave station 2
POWER COM. ALARM
Steps to take