Mitsubishi MELSEC-Q series Programming Manual page 158

S.DED
(2) Execution cycle ( T)
Set the execution cycle in SD1500 and SD1501 as real numbers.
Set Data
Processing contents
(1) The S.DED instruction performs the following operation.
e1 OCHG
1 0/1
0
1 0
1
0/1
0 0
*1 The oldest date is the E1 after the SNth time.
• When the dead time table date is not filled, BB1 is turned 1.
• When SN = 0, BB1 = 0 and BW = E1.
Operation Error
In the following cases, the error flag (SM0) turns ON and the error code is stored in SD0.
Error code
When an operation error occurs
When the values of
normalized number
4100
When the sampling count is other than 0 to 48
When the execution cycle ( T) < 0
When the data collection intervals (ST) < 0
When the values of
4140
normalized number
4141 When an operation error occurs
156
Dead time
None E1
Up to SN
E1 when e1 turns from 1 to 0
times
Later than SN
Oldest data
times
ST × SN
Up to SN
Y
times
Later than SN
Oldest data
times
*1
ST × SN
Oldest data
Error definition
, are either a non-numeric or non-
S1 S2
, are either a non-numeric or non-
S1 S2
BW
*1
S
*1
QnPHCPU QnPRHCPU
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QnUDPVCPU
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