Delta DVP-ES2/EX2/SS2/SA2/SX2/SE manual Explanations to Basic Instructions, Ldi

3. Instruction Set

execution time could be longer due to a more complicated program, e.g. program contains multiple interruptions or high speed input/output.

3.2 Explanations to Basic Instructions

Mnemonic	Operands	Function	Program steps
LD	X, Y, M, S, T, C	Load NO contact	1~3

Controllers

ES2/EX2 SS2 SA2SE SX2

Explanations:

The LD instruction is used to load NO contact which connects to left side bus line or starts a new block of program connecting in series or parallel connection.

Program example:
Ladder diagram:				Instruction:		Operation:
				LD	X0	Load NO contact X0
	X0	X1	Y1
				AND	X1	Connect NO contact X1 in series
				OUT	Y1	Drive coil Y1

Mnemonic	Operands	Function	Program steps
LDI	X, Y, M, S, T, C	Load NC contact	1~3

Controllers

ES2/EX2 SS2 SA2SE SX2

Explanations:

The LDI instruction is used to load NC contact which connects to left side bus line or starts a new block of program connecting in series or parallel connection.

Program example:
Ladder diagram:				Instruction:		Operation:
				LDI	X0	Load NC contact X0
	X0	X1	Y1
				AND	X1	Connect NO contact X1 in series
				OUT	Y1	Drive coil Y1

Mnemonic	Operands	Function	Program steps
AND	X, Y, M, S, T, C	Connect NO	1~3
		contact in series

Controllers

ES2/EX2	SS2	SA2	SX2
		SE

Explanations:

The AND instruction is used to connect NO contact in series.

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