24 ERRONEOUS NOISE SIGNAL RECEPTION PREVENTION FUNCTION
24.1 Erroneous Noise Signal Reception Prevention Function
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24 ERRONEOUS NOISE SIGNAL RECEPTION
PREVENTION FUNCTION
This chapter explains the erroneous noise signal reception prevention function of C24.
24.1 Erroneous Noise Signal Reception Prevention
Function
Depending on the device to be connected to C24, noise signals may be added on the line when turning ON the power or
connecting cables of the device.
When noise signals are added, C24 falsely recognizes it has received improper data, and discards the data resulting in
abnormal detection.
Using this function avoids erroneous noise signal reception.
This function is set in the module parameter and the 'Communication data reception enable/disable designation' (Un\G292/
452).
Configure the setting to disable the reception with the parameter settings of Engineering tool, and set the buffer memory to
'Receive enable' (0) at a certain time before starting data reception after powering ON.
Set the erroneous reception
prevention designation area to disable
reception until the serial line is settled.
Power
ON
Data is discarded.
Noise generated
Set to disable reception with
module parameter.
Set the erroneous reception prevention designation area
to enable reception once the serial line has been settled.
Data is received normally.
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