Delta Electronics VFD-E manual Cnt, C2 K100, Mc / Mcr

The counting value is set back to zero, the coil and the contact are both turned OFF

The coil is OFF, and the timer value and the contact stay at their present condition

The counting value is back to zero. Both coil and contact are turned OFF.

		Appendix D How to Use PLC Function
Mnemonic		Function
CNT		16-bit counter
Operand	C-K	C0~C7, K0~K32,767
	C-D	C0~C7, D0~D29

Explanations:

1.When the CNT command is executed from OFFÆON, which means that the counter coil is driven, and 1 should thus be added to the counter’s value; when the counter achieved specific set value (value of counter = the setting value), motion of the contact is as follows:

NO(Normally Open) contact	Continuity
NC(Normally Closed) contact	Non-continuity

2.If there is counting pulse input after counting is attained, the contacts and the counting values will be unchanged. To re-count or to conduct the CLEAR motion, please use the RST command.

Program Example:
Ladder diagram:					Command code:		Operation:
	X0				LD	X0	Load contact A of X0 C2 counter
		CNT	C2	0	K100
					CNT	C2 K100	Setting is K100

Mnemonic

MC / MCR

Operand

Function

Master control Start/Reset

N0~N7

Explanations:

1.MC is the main-control start command. When the MC command is executed, the execution of commands between MC and MCR will not be interrupted. When MC command is OFF, the motion of the commands that between MC and MCR is described as follows:

Timer

Accumulative timer

Subroutine timer

Revision June 2008, 04EE, SW--PW V1.11/CTL V2.11 D-39