Delta DVP-ES2/EX2/SS2/SA2/SX2/SE manual Ld/Ldi/Ldp/Ldf And/Ani/Andp/Andf Anb/Orb, Mc/Mcr

DVP - ES2EX2/SS2/SA2/SX2/SE Operation Manual - Programming

STL diagram. However, there are restrictions on some of the instructions. Care should be taken when using the instructions listed in the table below.

Basic Instructions Applicable in a Step

	Basic instruction	LD/LDI/LDP/LDF
		AND/ANI/ANDP/ANDF	ANB/ORB
Step point		OR/ORI/ORP/ORF	MPS/MRD/MPP
		INV/OUT/SET/RST
Primary step point/ General step point		Yes	Yes
Diverging step	General output	Yes	Yes
point/
Converging	Step point transfer	Yes	Yes
step point

MC/MCR

No

No

No

1.DO NOT use MC/MCR instruction in the step.

2.DO NOT use STL instruction in a general subroutine or interruption subroutine.

3.CJ instruction can be used in STL instruction, however this is not recommended because the actions will thus become more complicated.

4.Position of MPS/MRD/MPP instruction:

Ladder diagram:						Instruction code:		Explanation:
		LD X0				STL	Sn	MPS/MRD/MPP instruction
						LD	X0	cannot be used directly on
		S n X0 MPS X1
						MPS
		S			Y1			the new bus. You have to
						AND	X1
				X2				execute LD or LDI
					M0	OUT	Y1
	BUS		MRD					instruction first before
				X3		MRD
					Y2	AND	X2	applying MPS/MRD/MPP.
			MPP
						OUT	M0
						MPP
						AND	X3
						OUT	Y2

Other Points to Note:

1.The instruction used for transferring the step (SET S□ or OUT S□) are suggested to be executed after all the relevant outputs and actions in the current step are completed.

The execution results by the PLC are the same. However, if there are many conditions or actions in S10, it is recommended to modify the diagram in the left into the diagram in the right, which executes SET S20 after all actions are completed. The sequence will be more understandable and clear with this modification.

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