Delta DVP-ES2 User Manual download pdf (Page 644)

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

5.6 IST Instruction

API Mnemonic Operands Function

Controllers

ES2/EX2

60 IST

Initial State

SS2 SA2 SX2

Bit Devices Word devices Program Steps Type

X Y M S K H KnX KnY KnM KnS T C D E F

IST: 7 steps

* * *

D *

PULSE 16-bit 32-bit

ES2/EX2 SS2 SA2 SX2 ES2/EX2 SS2 SA2 SX2 ES2/EX2 SS2 SA2 SX2

Operands:

S: Source device for assigning pre-defined operation modes (8 consecutive devices). D

The

smallest No. of step points in auto mode. D

: The greatest No. of step points in auto mode.

Explanations:

1. The IST is a handy instruction specifically for the initial state of the step ladder operation

modes.

2. The range of D

and

: S20~S911, D

< D

3. IST instruction can only be used one time in a program.

Program Example 1:

M1000

IST X20 S20 S60

X20: Individual operation (Manual operation) X24: Continuous operation

X21: Zero return X25: Zero return start switch

X22: Step operation X26: Start switch

X23: One cycle operation X27: Stop switch

1. When IST instruction is executed, the following special auxiliary relays will be assigned

automatically.

M1040: Movement inhibited S0: Manual operation/initial state step point

M1041: Movement start S1: Zero point return/initial state step point

M1042: Status pulse S2: Auto operation/initial state step point

M1047: STL monitor enable

2. When IST instruction is used, S10~S19 are occupied for zero point return operation and

cannot be used as a general step point. In addition, when S0~S9 are in use, S0 initiates

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1 2 ... 639 640 641 642 643 644 645 646 647 648 649 ... 701 702

Delta DVP-ES2 User Manual Page 644

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