Delta DVP-ES2/EX2/SS2/SA2/SX2/SE manual Phase 1 input high-speed counter Example, Rst, Dcnt

DVP - ES2/EX2/SS2/SA2/SX2/SE Operation Manual - Programming

7. C243 and C244 support count-up mode only and occupy the associate input points X1 and X3 as reset (“R”) function. If users do not need to apply reset function, set ON the associated special M relays (M1243 and M1244) to disable the reset function.

8. “Dir” refers to direction control function. OFF indicates counting up; ON indicates counting down.

9. When X1, X3, X4 and X5 is applied for reset function and associated external interrupts are disabled, users can define the reset function as Rising/Falling-edge triggered by special M relays

Reset Function	X1	X3	X4	X5
R/F	M1271	M1273	M1274	M1275

10. When X1, X3, X4 and X5 is applied for reset function and external interrupts are applied, the interrupt instructions have the priority in using the input points. In addition, PLC will move the current data in the counters to the associated data registers below then reset the counters.

Special D		D1241, D1240			D1243, D1242
Counter	C243	C246	C248	C252	C244	C250	C254
External Interrupt	X1	X4(I400/I401)			X3	X5(I500/I501)
	(I100/I101)				(I300/I301)

Example:

I101

EI

M1000

DCNT C243 K100

FEND

M1000

DMOV D1240 D0

IRET

END

When C243 is counting and external interrupt is triggerred from X1(I101), counted value in C243 will be move to (D1241, D1240) immediately then C243 is reset. After this interrupt I101 executes.

1-phase 1 input high-speed counter:

Example:
LD	X20
RST	C235
LD	X21
OUT	M1235
LD	X22
DCNT	C235 K5
LD	C235
OUT	Y0

X20

RST C235 X21

M1235 X22

DCNT C235 K5 C235

Y0

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