Siemens SIMOREG DC Master 6RA7028-6DS22 Operating Instructions Manual page 141

02.00
Binary inputs (see also Section 8, sheet G111)
Function
Supply
Ground digital M
Select input binary 3
Select input binary 4
Select input binary 5
Select input binary 6
Binary outputs (see also Section 8, sheet G112)
Function
Select output binary 3
Ground M
Select output binary 4
Ground M
Serial interface 3 RS485
Function Terminal
TX+
TX-
RX+/TX+
RX-/TX-
M
For transmission rate =187.5kBd ⇒ 600m
Cable length:
For transmission rate ”93.75kBd ⇒ 1200m
The following must be observed: DIN 19245 Part 1
The potential difference between the data reference potentials M of all interfaces must not
exceed -7V / +12V. If this cannot be guaranteed, then equipotential bonding must be
provided.
Activate interface 3:
– Set the baud rate in parameter P803.
– Set the protocol in parameter P800.
Siemens AG 6RX1700-0AD76
SIMOREG DC Master Operating Instructions
Terminal
X163
44
45
40
41
42
43
Terminal
X163
50
51
52
53
Connection values/Remarks
X162
61 RS485, 4-wire send cable, positive differential input
61 RS485, 4-wire send cable, negative differential input
63 RS485, 4-wire receive cable, positive differential input, 2-wire
send/receive cable, positive differential input
64 RS485, 4-wire receive cable, negative differential input, 2-wire
send/receive cable, negative differential input
65 Ground
Connection values/Remarks
24V DC, internal short-circuit-proof supply referred to
internal ground.
The sum of the currents drawn from terminals 34, 44 and
210 must not exceed 200 mA.
Overload response: Fault message F018
H signal:+13V to +33V
L signal:– 33V to +3V or terminal open
8.5mA at 24V
Connection values/Remarks
H signal:+20V to +26V
L signal:0 to +2V
Short-circuit-proof 100mA
Internal snubber circuit (free-wheeling diode)
Overload response: Fault message F018
Connections
6-63