IDEC MICROSmart FC6A Series User Manual page 632

13: T
ROUBLESHOOTING
Troubleshooting Diagram 15
Long communication cycle for Modbus RTU master
communication or Modbus TCP client communication.
Configure a request execution device and assign
a data register or internal relay.
Turn off the request execution devices for communication
requests that do not require constant execution and turn on
the devices only when they are used.
Troubleshooting Diagram 16
WindLDR and the FC6A Series
MICROSmart cannot communicate.
Is the USB cable connected?
Are the power LED [PWR] and the
run LED [RUN] on?
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.
13-24
END
NO
YES
NO
YES
Are the WindLDR
NO
communication
settings correct?
YES
FC6A S MICROS
ERIES
Connect the USB cable.
When the power LED [PWR] and the run
LED [RUN] do not turn on
Set the correct communication settings.
U ' M FC9Y-B1722
MART SER S ANUAL
*1