Mounting and Wiring
Wiring Communication Links
RS 485 serial communications
When connecting the controller to a RS 485 communication link (see Figure 27), you must use termination resistors at each end of the link. The following cables with the listed resistor values can be used for connecting the controller.
RS 485 Cables: Belden #9271 (or equivalent) with 120 ohm termination resistors (2,000 ft. maximum)
Belden #9182 (or equivalent) with 150 ohm termination resistors (4,000 ft. maximum)
Host
Computer
RS232/RS485
Converter*
Controller with Optional Communications Board
OFFLINE
RUN PROGRAM
| CONFIGURATION |
|
| POWER | |
| LoBAT |
|
| FORCE | |
Re plac e battery with Ta diran TL5101/S | RUN |
|
only. Us e of another battery ma y pre sent a ris k of fire or explosi on. See users g uide for ins tructions . | DISPLAY | |
BAT
_
100 - 24 0 V ~
50 / 60 Hz
100 VA MAX.
F 3,15 A T 
250V
*RS 485 communications requires termination resistors at each end.
A | L1 | |
COMM | ||
L2 / N | ||
COMM B |
|
To other UMC800 Controllers*
Figure 27 RS 485 port wiring (2 wire)
Release F | UMC800 Controller Installation and User Guide | 43 |
4/01 |
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