Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 296

■Processing operation
: Performed, : Not performed
Control mode
MAN, CMV, AUT, CAS, CSV, CASDR
*1 An alarm whose corresponding bit is TRUE (Valid) in the disable alarm detection (INH) is not detected.
Operation error
Error code Description
(SD0)
3400H An invalid operation (such as division by zero) is performed.
3402H Input data (PVPI) or tag data is a subnormal number or NaN (not a number).
3403H An overflow has occurred.
3405H The variation rate alarm value (DPL) is less than the variation rate alarm value (DPL) in negative.
The execution cycle (T) setting is less than 0.
The variation rate alarm check time (CTIM) setting is less than 0.
The value divided the variation rate alarm check time (CTIM) by the execution cycle (T) exceeds 32767.
10 LOOP CONTROL OPERATION
294
10.19 High/Low Limit Alarm Check (M+P_PHPL)
Processing operation
High high limit/high limit/low limit/low
low limit check

Variation rate Engineering
check value
conversion
 
Alarm
*1
