Cabling and Wiring the System
4-6
TI545/TI555 System Manual
4.3 Installing Remote I/O Cables
Effective
with Firmware Release 3.0 the TI545/TI555 provides two cabling
options for the remote I/O system:
•
Non-redundant I/O cabling using twisted pair (RS-485) media.
•
Redundant I/O cabling using coaxial (RF) media.
This manual describes the twisted pair media. If you are installing a
Redundant I/O system follow the instructions in the
SIMATIC TI505
Redundant I/O Systems User Manual, PPX:505–8125–2.
Use RS-485 cabling to install your trunk and drop lines after you have
installed other system hardware items.
Figure 4-2 shows a typical application. The following sections provide
information on cabling the TI545/TI555 controller and RBCs designed for
RS-485 cables. These models are as follows:
•
Programmable Controller — PPX:545–1
102, PPX:555–1
101, or
PPX:555–1102.
•
RBC — PPX:505–6851–A for Series 505 bases.
•
RBC — PPX:500–5114–A for Series 500 bases (see Appendix D).
TT
Trunk
Lines
Drop Lines
Drop Line
T = T
erminal Block
T
Remote
Base
Remote
Base
Local
Base
Figure 4-2 Trunk
and Dr
op Line Example
Cabling Options
T
runk and Dr
op
Lines
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