Delta DVP-ES2 User Manual download pdf (Page 305)

100

101

3. Instruction Set

3-189

182. Please use transistor output for Y20 ~ Y23. Every pin 1, 2, 4, 8 shall be connected to a diode

(0.1A/50V) in series before connecting to the input terminals on PLC.

Wiring diagram of DIP switch:

S/S

X20

X21 X22

X23

X24 X25 X26 X27

Y23Y22Y21Y20C

12 48 1 2 48

PLC

10 10 10 10

0123

+24V

DIP switches for

BCD wiring

Must connect to a

diode (1N4148) in

series

The first group

The second group

Points to note:

When the terminals to be scanned are relay outputs, the following program methods can be applied:

183. When X30 = ON, DSW instruction will be executed. When X30 goes OFF, M10 remains ON

until the current scan cycle of output terminals is completed..

184. If the drive contact X30 uses button switch, M10 turns off only when the current scan cycle on

outputs is completed, so that a correct value from DIP switch can be read. In addition, the

continuous scan cycle on outputs will be performed only when the drive contact is pressed and

held. Applying this method can reduce the driving frequency of relay outputs so as to extend to

life-span of relays.

M10

DSW X20 Y20 D20 K2

X30

SET M10

M1029

RST M10

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Delta DVP-ES2 User Manual Page 305

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