IDEC MICROSmart FC6A Series User Manual page 634

13: T
ROUBLESHOOTING
Troubleshooting Diagram 18
Modbus master communication
request is slow.
Select to use request execution internal
relay and designate an internal relay
number.
Keep unnecessary internal relays turned off
and turn on internal relays only when
sending requests.
13-26
END
FC6A S MICROS
ERIES
U ' M FC9Y-B1722
MART SER S ANUAL