IDEC MICROSmart FC6A Series, User Manual

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13: T
ROUBLESHOOTING
13-18 FC6A S
ERIES
MICROS
MART
U
SER
’
S
M
ANUAL
FC9Y-B1722
Troubleshooting Diagram 11
*1 See Chapter 5 "User Communication via Serial Communication" - "Programming WindLDR" in the "FC6A Series MICROSmart Communication
Manual".
If the user communication still has a problem after completing the above procedure, also perform the
procedure of Diagram 10, described on the preceding page.
Did you make
sure of source 1 device of the TXD
instruction?
Call IDEC for assistance.
NO
Are communication
parameters set correctly
using WindLDR?
NO
Are inputs to
more than 5 TXD instructions on
simultaneously?
YES
Correct the program to make sure that inputs to
more than 5 TXD instructions do not go on
simultaneously.
Data is not transmitted correctly
in the user communication mode.
Set the communication parameters to match those of
the remote terminal using WindLDR
*1
.
Make sure that the busy signal at the remote
terminal does not exceed 5 s.
NO
NO
Is the data register
designated as transmit
status used repeatedly?
Correct the program to replace the duplicate data
register with a different data register.
Is duration of the busy
signal at the remote terminal
less than 5 s?
YES
NO
YES
Make sure that the transmit data designated as
source 1 device is correct.
YES
YES