3 control terminals – Siemens MICROMASTER 420 User Manual
Page 31
Issue 07/04
2 Installation
MICROMASTER 420 Operating Instructions
6SE6400-5AA00-0BP0
31
2.4.3 Control
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.