1.7
Input Signal Error Detection Function
This function outputs an alarm when an analog input value exceeds the preset range.
Analog input value
Input signal error detection
upper limit value
Input signal error detection
lower limit value
'CH1 Input signal error detection flag'
(Un\G40, b0)
'CH2 Input signal error detection flag'
(Un\G40, b1)
'Input signal error detection signal'
(XC)
'Error clear request' (YF)
Errors can be cleared using the input signal error detection auto-clear enable/disable setting. For details, refer
to the following.
Page 41 Clearing input signal errors
1 FUNCTIONS
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1.7 Input Signal Error Detection Function
CH2 Analog
input value
CH1 Analog
input value
Error
detection
ON
OFF
OFF
ON
OFF
Controlled by the A/D converter module
Controlled by the program
Normal
input value
Error
detection
ON
ON
Detection range
Out of detection range
Included
Time
OFF
OFF
OFF
OFF