IDEC MICROSmart FC6A Series User Manual page 629

Troubleshooting Diagram 12
Data is not received at all
in the user communication mode.
communication cable
connected correctly?
Are the power LED [PWR] and the
Call IDEC for assistance.
*1 See "The Power LED [PWR] is not On" on page 13-11 or "The Run LED [RUN] is not On" on page 13-12.
Is the
YES
Is the input to the
RXD instruction on?
YES
run LED [RUN] on?
YES
FC6A S MICROS
ERIES
NO
Make sure of correct wiring.
NO
Turn on the input to the RXD instruction.
NO
When the power LED [PWR] and the run LED [RUN]
do not turn on
U ' M
MART SER S ANUAL
13: T
*1
FC9Y-B1722
ROUBLESHOOTING
13-21