Delta Electronics VFD-E manual Devices Functions, „ The Function of Input/output Contacts

Appendix D How to Use PLC Function

			Items		Specifications		Remarks
							When timer attains, the
		T	Present value of timer		T0~T15, 16 points		contact of timer will be
							On.
							When timer attains, the
		C	Present value of counter		C0~C7, 8-bit counter, 8 points		contact of timer will be
	data						On.
	WORD
				For latched	D0~D9, 10 points	Total is
			Data				It can be memory area
		D		For general	D10~D29, 20 points
						75
	Register
			register			points	for storing data.
				For special	D1000~D1044, 45
					points
	Constant	K	Decimal		K-32,768 ~ K32,767 (16-bit operation)
		H	Hexadecimal		H0000 ~ HFFFF (16-bit operation)
Communication port (for read/write					RS485 (slave)
program)
Analog input/output					Built-in 2 analog inputs and 1 analog output
Function extension module (optional)					Digital input/output card (A/D, D/A card)

D.4.2 Devices Functions

„The Function of Input/output Contacts

The function of input contact X: input contact X reads input signal and enter PLC by connecting with input equipment. It is unlimited usage times for A contact or B contact of each input contact X in program. The On/Off of input contact X can be changed with the On/Off of input equipment but can’t be changed by using peripheral equipment (WPLSoft).

„The Function of Output Contact Y

The mission of output contact Y is to drive the load that connects to output contact Y by sending On/Off signal. There are two kinds of output contact: one is relay and the other is transistor. It is unlimited usage times for A or B contact of each output contact Y in program. But there is number for output coil Y and it is recommended to use one time in program. Otherwise, the output result will be decided by the circuit of last output Y with PLC program scan method.

D-20 Revision June 2008, 04EE, SW--PW V1.11/CTL V2.11