IDEC FT1A Series User Manual page 363

Troubleshooting Diagram 16
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 17
WindLDR and the SmartAXIS
cannot communicate.
Is the USB interface
Is the power/run status LED on?
SmartAXIS Pro: Is the LCD
Call IDEC for assistance.
*1 See "SmartAXIS Pro - The Backlight is not On" on page 14-9 or "SmartAXIS Lite - The Power/Run Status LED (PWR/RUN) is not On" on page 14-
10.
END
NO
cable connected?
YES
SmartAXIS Lite:
NO
backlight on?
YES
Are the WindLDR
NO
communication
settings correct?
YES
S AXIS P
MART
Connect the cable.
SmartAXIS Lite: When the power/run
status LED is not on
SmartAXIS Pro: When the LCD backlight is
*1
not on
Set the correct communication settings.
/L U ' M FT9Y-B1378
RO ITE SER S ANUAL
14: T
ROUBLESHOOTING
14-23