Mitsubishi Electric MELDAS C6 Programming Manual page 202

Program example
(1) Program to decrement the D0, 1 data by one when M0 turns ON.
M0
10
(pulse coding)
(2) Program to decrement X10 to X27 data by one when M0 turns ON, and to store the results in D3,
4.
M0
10
(pulse coding)
8. Function Commands
DDEC, DDECP
DDEC
D0
K6X10 D3
DMOV
DDEC
D3
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Coding
No. of Com-
Device
steps mand
10 LD M0
11 DDEC D0
13
Coding
No. of Com-
Device
steps mand
10 LD M0
11 DMOV K6X10 D3
14 DDEC D3
16