Mitsubishi Electric MELSEC iQ-R Series - Page 1300

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11 PROCESS CONTROL INSTRUCTIONS
11.3 Control Operation Instructions
Processing details
The input value (E1) is output with a delay by the dead time according to the content of the operation control signal (e1).
SN: Sampling count, ST: Data collection interval, E1: Input value, YS: Initial output value
The S.DED instruction performs the following operations.
*1 Least recent data is an input value (E1) after SN.
• When the dead time table does not have sufficient data, the data sufficiency bit (BB1) is set to 1.
• When the sampling count (SN) is 0, the data sufficiency bit (BB1) is 0 and the output value (BW) equals the input value
(E1).
Operation error
SN: Dead time table
e1 OCHG Dead time BW
10/1 E1
100 STSN Up to SN E1 when e1 changed from 1 to 0
After SN Least recent data
*1
1 Up to SN YS
After SN Least recent data
*1
000/1 STSN Least recent data
*1
Error code (SD0) Error content
3400H An invalid operation (such as division by zero) is performed.
3402H The value specified by (s1) or (s2) is a subnormal number or NaN (not a number).
3403H An overflow has occurred.
3405H The execution cycle (T) setting is less than 0.
The sampling count (SN) is less than 0 or greater than 48.
The data sampling interval (ST) is less than 0.
(Data sampling interval (ST)execution cycle (T)) is greater than 32767.
e1
BB1
SN
SN
E1, Y1
ST1 ST2 ST3 ST4 ST5 ST6 ST7
Ys
E1
Y1
SN1
SN3
SN2
SN