Issue 07/04

2 Installation

2.4.3Control terminals

Terminal

Designation

Function

 

1

-

Output +10 V

 

 

 

 

 

2

-

Output 0 V

 

3

ADC+

Analog input 1 (+)

 

 

 

 

 

4

ADC-

Analog input 1 (-)

 

 

 

 

 

5

DIN1

Digital input 1

 

 

 

 

 

6

DIN2

Digital input 2

 

7

DIN3

Digital input 3

 

 

 

 

 

8

-

Isolated output +24 V / max. 100 mA

 

 

 

 

 

9

-

Isolated output 0 V / max. 100 mA

 

10

RL1-B

Digital output / NO contact

 

11

RL1-C

Digital output / Changeover contact

 

 

 

 

 

12

DAC+

Analog output (+)

 

 

 

 

 

13

DAC-

Analog output (-)

 

14

P+

RS485 port

 

 

 

 

 

15

P-

RS485 port

 

 

 

 

 

Fig. 2-7

Control terminals of MICROMASTER 420

 

A detailed description of the inputs and outputs is provided in Section 3.6.

MICROMASTER 420

Operating Instructions

6SE6400-5AA00-0BP0

31

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Image 31
Siemens 420 manual Control terminals, Terminal Designation Function