46
4 FUNCTIONS
4.9 Input Signal Error Detection Function
4.9
Input Signal Error Detection Function
Outputs an alarm when an analog input value exceeds the preset range.
Errors can also be cleared with the input signal error detection auto clear enable/disable setting. Refer to the
following sections for details.
Page 49 Clearing input signal errors
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
Controlled by the multiple input module
Controlled by the program
Input signal error detection
upper limit value
Input signal error detection
lower limit value
Analog input value
Time (t)
Error
detection
Normal
input value
Error
detection
Detection range
Out of detection range
Included
CH1 Analog
input value
CH2 Analog
input value
'CH2 Input signal error detection flag'
(Un\G40, b1)
'CH1 Input signal error detection flag'
(Un\G40, b0)
'Input signal error detection signal'
(Un\G69, b12)
'Error clear request' (Un\G70, b15)
Summary of Contents for MELSEC iQ-F
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