Delta DVP-ES2 - Manual (Page 122)

D V P - E S 2 / S A 2 / S S 2 / S A2 / S X 2 / S E O p e r a t i o n M a n u a l - P r o g r a m m i n g
3 - 6
Program example:
Ladder diagram:
X0
X2
Y1
X1
X3
ORB
Block A
Block B
Instruction: Operation:
LD X0 Load NO contact X0
ANI X1 Connect NC contact X1 in series
LDI X2 Load NC contact X2
AND X3 Connect NO contact X3 in series
ORB Connect circuit block in parallel
OUT Y1 Drive Y1 coil
Mnemonic Function Program steps
MPS
Start of branches. Stores current result
of program evaluation
1
Controllers
ES2/EX2 SS2
SA2
SE
SX2
Explanations:
As the start of branches, MPS stores current result of program evaluation at the point of
divergence.
Mnemonic Function Program steps
MRD
Reads the stored current result from
previous MPS
1
Controllers
ES2/EX2 SS2
SA2
SE
SX2
Explanations:
MRD reads the stored current result from previous MPS and operates with the contact connected
after MRD.
Mnemonic Function Program steps
MPP
End of branches. Pops (reads and
resets) the stored result in previous
MPS.
1
Controllers
ES2/EX2 SS2
SA2
SE
SX2
Explanations:
As the end of branches, MPP pops the stored result in previous MPP, which means it operates
with the contact connected first then resets the storage memory.
Points to note:
1. Every MPS can not be applied without a corresponding MPP
2. Max. 8 MPS-MPP pairs can be applied..