Delta DVP-ES2 Manuale Utente Scaricare il pdf (Pagina 285)

100

101

3. Instruction Set

3-169

API Mnemonic Operands Function

ALT P

Alternate State

Controllers

ES2/EX2 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

D * * *

ALT, ALTP: 3 steps

PULSE 16-bit 32-bit

ES2/EX2 SS2

SA2

SX2 ES2/EX2 SS2

SA2

SX2 ES2/EX2 SS2

SA2

SX2

Operands:

D: Destination device

Explanations:

144. The status of D is alternated every time when the ALT instruction is executed.

145. When ALT instruction is executed, ON/OFF state of D will be switched which is usually applied

on switching two operation modes, e.g. Start/Stop

146. This instruction is generally used in pulse execution mode (ALTP).

Program Example 1:

When X0 goes from OFF to ON, Y0 will be ON. When X0 goes from OFF to ON for the second time,

Y0 will be OFF.

ALTP Y0

Program Example 2:

Creating a flashing circuit by applying ALTP with a timer

When X20 = ON, T0 will generate a pulse every two seconds and output Y0 will be switched

between ON and OFF by the pulses from T0.

X20

TMR T0

ALTP Y0

K20

1 2 ... 280 281 282 283 284 285 286 287 288 289 290 ... 701 702

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Delta DVP-ES2 Manuale Utente Pagina 285

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