Delta DVP-ES2 User Manual download pdf (Page 443)

100

101

3. Instruction Set

3-327

API Mnemonic Operands Function

144

GPWM

General PWM output

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 * * *

GPWM: 7 steps

PULSE 16-bit 32-bit

ES2/EX2 SS2

SA2

SX2 ES2/EX2 SS2

SA2

SX2 ES2/EX2 SS2

SA2

SX2

Operands:

: Width of output pulse S

: Pulse output cycle (occupies 3 devices) D: Pulse output device

Explanations:

1. When GPWM instruction executes, pulse output will be executes on device specified by D

according to pulse output width S

and pulse output cycle S

2. S

: pulse output width. Range: t = 0~32,767ms.

3. S

: pulse output cycle. Range: T = 1~32,767ms, S

≦ S

4. S

+1 and S

+2 are system-defined parameters, please don’t use them.

5. D: pulse output device: Y, M and S.

6. When S

≦ 0, no pulse output will be performed. When S

≧ S

, the pulse output device

remains ON.

7. S

and S

can be modified when GPWM instruction is being executed

Program Example:

Assume D0 = K1000, D2 = K2000. When X0 = ON, Y20 will output pulses as the following diagram.

When X0 = OFF, Y20 output will be OFF.

GPWM D0 D2 Y20

t=1000ms

T=2000ms

Output Y20

Points to note:

1. The instruction operates by the scan cycle; therefore the maximum error will be one PLC

scan cycle. S

, S

and (S

- S

) should be bigger than PLC scan cycle, otherwise malfunction

will occur during GPWM outputs.

2. Please note that placing this instruction in a subroutine will cause inaccurate GPWM outputs

1 2 ... 438 439 440 441 442 443 444 445 446 447 448 ... 701 702

Delta DVP-ES2 User Manual Page 443

Comments to this Manuals