Communications Installation - Siemens HydroRanger 200 HMI Operating Instructions Manual

Communications installation

Wiring guidelines
• The RJ-11 cable maximum length is 3 meters.
• RS-485 maximum length is 1,200 meters (4,000 feet).
• Use 24 AWG (minimum).
• Use good quality communication grade (shielded twisted pairs) cable that is
recommended for RS-485 for port 2 (Belden 9842).
• Run the communication cable separately from power and control cables (do not tie
wrap your RS-232 or RS-485 cable to the power cable or have them in the same
conduit).
• Use shielded cable and connect to ground at one end only.
• Follow proper grounding guidelines for all devices on the bus.
Improper wiring and incorrect choice of cables are two of the most common
Note:
causes of communication problems.
Ports 1 and 2
Port Wall mount
RS-232 port (RJ-11 modular telephone jack) is generally used with a laptop com-
1
puter or modem.
2
Connections for the RS-485 port are on the terminal block.
Ports 1 and 2: RS-232 RJ-11 jack and RS-485 locations
The RJ-11 jack and the RS-485 port are inside the enclosure of the unit.
A5E36281317
RJ-11 jack
TRANSDUCER
1 WHT
2
2 BLK
3 WHT
1
4 BLK
5 SHLD
6
7
8
9
10
11
12
13
14
15
16
17
18
19
HydroRanger 200 HMI – OPERATING INSTRUCTIONS
SERVICE
DISPLAY
12 - 30 V
BATTERY
INPUT POWER
OPTIONAL CARD
SYNC 20
21
22
SHLD 23
24
1
25
26
2
27
28
29
SHLD 30
1 31
2 32
DC 33
COM 34
A 35
B 36
RS-485 port
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