Delta DVP-ES2 User Manual download pdf (Page 381)

100

101

3. Instruction Set

3-265

API Mnemonic Operands Function

DCNT

32-bit counter

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

* *

DCNT: 9 steps

PULSE 16-bit 32-bit

ES2/EX2 SS2

SA2

SX2 ES2/EX2 SS2

SA2

SX2 ES2/EX2 SS2

SA2

SX2

Operands:

: No. of 32-bit counter (C200~C254)

: Set value (K-2,147,483,648~K2,147,483,647, D0~D9,999)

Explanations:

1. DCNT is the startup instruction for the 32-bit counters C200 to C254.

2. For general counting up/down counters C200~C231(SS2/SA2/SE/SX2: C200~C232), the

present value will plus 1 or minus 1 according to the counting mode set by flags

M1200~M1231 when instruction DCNT is executed.

3. For high speed counters C232~C254(SS2/SA2/SE/SX2: C233~C254), when the specified

high speed counter input is triggered by pulse, the counters will start counting. For details

about high-speed input terminals (X0~X7) and counting modes (count up/down), please refer

to section 2.12 C (Counter).

4. When DCNT instruction is OFF, the counter will stop counting, but the count value will not be

cleared. Users can use RST instruction to remove the count value and reset the contact, or

use DMOV instruction to move a specific value into the register. For high-speed counters

C232~C254, use specified external input point to clear the count value and reset the contacts.

Program Example:

Ladder Diagram:

C254DCNT

K1000

Instruction Code: Operation:

LD M0 ; Load NO contact M0

DCNT C254 K1000 ; C254 counter setting is K1000

1 2 ... 376 377 378 379 380 381 382 383 384 385 386 ... 701 702

Delta DVP-ES2 User Manual Page 381

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