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14: T
R OUBLESHOOTI N G
Troubleshooting Diagram 13
Data is not received at all
in the user communication mode.
communication cable
connected correctly?
Is the power/run status LED on?
Is the LCD backlight on?
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.
14-20
Is the
YES
Is the input to the
RXD instruction on?
YES
SmartAXIS Lite:
SmartAXIS Pro:
YES
S
A XI S P
M AR T
NO
Make sure of correct wiring.
NO
Turn on the input to the RXD instruction.
SmartAXIS Lite: When the power/run status LED is
NO
not on
SmartAXIS Pro: When the LCD backlight is not on
/ L
U
'
M
FT9Y-B 1378
R O
I TE
SER
S
ANUAL
*1
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Table of Contents
Troubleshooting
