S
MART
AXIS P
RO
/L
ITE
U
SER
'
S
M
ANUAL
FT9Y-B1378 14-23
14: T
ROUBLESHOOTING
Troubleshooting Diagram 16
Troubleshooting Diagram 17
*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.
Long communication cycle for Modbus RTU master
communication or Modbus TCP client communication.
END
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.
NO
YES
YES
NO
WindLDR and the SmartAXIS
cannot communicate.
SmartAXIS Lite:
Is the power/run status LED on?
SmartAXIS Pro: Is the LCD
backlight on?
Is the USB interface
cable connected?
Call IDEC for assistance.
YES
NO
Are the WindLDR
communication
settings correct?
SmartAXIS Lite: When the power/run
status LED is not on
SmartAXIS Pro: When the LCD backlight is
not on
*1
Connect the cable.
Set the correct communication settings.
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