Table A; Part Numbers And Connection Diagrams - Siemens SITRANS F FUS1020 IP65 NEMA 4 Schnellstart

Appendix A
A.1 I/O Connections and Wiring
Pin#
4
5
6
7
8
9
10
①
②
③
Terminal Block Wiring - FUS1020 Dual Channel Flowmeter
(Refer to manual drawing 1020-7 sheet 3 of 4).
These connection diagrams apply to the part numbers listed below.

Table A- 5

FUS1020
36
Signal Function
DIGIN 2+ Digital Input 2
DIGIN 2- Digital Input Return 2
Rx RS-232 Receive
Tx RS-232 Transmit
GND Ground
RTS RS-232 Request to Send
CTS RS-232 Clear to Send
Flowmeter
D1 Input
D1 Return

Part Numbers and Connection Diagrams

Description
Clr Tot Input (see 1020-7 Schematic D)
Clr Tot Return (see 1020-7 Schematic D)
Std RS-232 Signals & Port Receive Data
from outside source
Std RS-232 Signals & Port Transmit Data
from outside destination
Standard RS-232 Signals and Port
④ D2 Input
⑤ D2 Return
⑥ Vc: 2VDC min. to 10 VDC max / I = 0.8 mA
/ R = Optional (select to acheive correct I)
1020-7 (Sheet 3 of 4) Drawing
7ME3570-bc
where:
b= 2 (Dual Channel)
c= E or G
Operating Instructions (Compact), 4/2009, CQO:QSG006 Revision B
SITRANS FUS1020 IP65 NEMA 4 Quick Start