Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 1300

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).
E1, Y1 SN
Ys
ST1
e1
BB1
SN: Dead time table
SN: Sampling count, ST: Data collection interval, E1: Input value, YS: Initial output value
The S.DED instruction performs the following operations.
e1 OCHG
1 0/1
10 0
1
00 0/1
*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
Error code (SD0)
3400H
3402H
3403H
3405H
11 PROCESS CONTROL INSTRUCTIONS
1298
11.3 Control Operation Instructions
SN
ST2 ST3 ST4
SN
Dead time

STSN
STSN
Error content
An invalid operation (such as division by zero) is performed.
The value specified by (s1) or (s2) is a subnormal number or NaN (not a number).
An overflow has occurred.
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
Y1
ST5 ST6 ST7
SN1
SN2
SN3
BW
E1
Up to SN E1 when e1 changed from 1 to 0
After SN Least recent data
Up to SN YS
After SN Least recent data
*1
Least recent data
*1
*1