IDEC MicroSmart Pentra - Manual (Page 150)

13: T ROUBLESHOOTING
13-24 W EB S ERVER CPU M ODULE U SER ’ S M ANUAL FC9Y-B1278
Troubleshooting Diagram 17
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Did you make sure of
source 1 device of the RXD
instruction?
Are communication
parameters set correctly
using WindLDR?
Are inputs to more
than 5 RXD instructions
on simultaneously?
Data is not received correctly in the
user communication mode.
Set the communication parameters to
match those of the remote terminal
using WindLDR. Web server CPU
module can use constants only for start
and stop delimiters. See “Programming
WindLDR” of the basic volume (page
10-5.)
Is the data register
designated as receive status
used repeatedly?
Correct the program to replace the
duplicate data register with a different
data register.
Is a start delimiter specified in
the RXD instruction?
Did you check the start
delimiter of incoming data?
Did you check the
format of incoming
data?
Is an end delimiter specified in
the RXD instruction?
Did you check the end
delimiter of incoming data?
Is the receive timeout
value set correctly using
WindLDR?
Is one input used to start
multiple RXD instructions?
Make sure that the receive format of
the RXD instruction matches that of
the incoming data.
Correct the program to make sure
that inputs to more than 5 RXD
instructions do not go on
simultaneously.
Use one input to start one RXD
instruction without a start delimiter.
Make sure that the start delimiter in
the RXD instruction matches that of
the incoming data.
Make sure that the end delimiter in
the RXD instruction matches that of
the incoming data.
Make sure that the receive timeout
value is larger than character intervals
of the incoming data.
Make sure that the receive data
designated as the source 1 device is
correct.
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Call IDEC for assistance.
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