Communications Installation; Wiring Guidelines; Ports 1 And 2; Ports 1 And 2: Rs-232 Rj-11 Jack And Rs-485 Locations - Siemens HydroRanger 200 Instruction 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
Note:
common causes of communication problems.

Ports 1 and 2

Port Wall Mount
1 RS-232 port (RJ-11 modular telephone jack) is on the motherboard and
is generally used with a laptop computer 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.
TB2
2
1
RELAY 1
RELAY 2
RELAY 3
RELAY 4
RELAY 5
RELAY 6
Page 90
TB1
L2/N L1
TB3
SYNC
mA INPUT
SHIELD
1
4 - 20 mA
OUTPUTS
2
TS-3
SHIELD
1
2
DISCRETE
INPUTS
COM
RS485
A
B
HydroRanger 200 – INSTRUCTION MANUAL
RJ-11 Jack
RS-485 Port
7ML19985FC03