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5-3

Installing Remote Base Controllers—RBCs

SIMATIC 545/555/575 System Manual

5.2 Installation

The following RBCs can be installed in a Series 505 base.

• PPX:505–6870, communicates over PROFIBUS-DP I/O channel using

12 Mbaud RS-485 cable. (Note: Series 505 Special Function modules

cannot be used in a DP base.)

• PPX:505–6851–A/B, communicates over Series 505 remote I/O channel

using 1 Mbaud RS-485 cable. This RBC can be used in a redundant

configuration (i.e., you can use two RBCs, and/or two power supplies) in

the PPX:505–6511 base. The RBC does not support dual media

(cabling).

• 505–6850–A/B, communicates over Series 505 remote I/O channel

using a PPX:505–6860 adapter to connect between coaxial cable and

1 Mbaud RS-485 cable. This RBC can be used in a redundant

configuration (i.e., you can use two RBCs, and/or two power supplies) in

the PPX:505–6511 base. The RBC also supports dual media (cabling).

RBCs used in a Series 505 base must always be installed in the second slot

from the left, adjacent to the power supply module. See Figure 5-2.

P/S

505

RBC

Figure 5-2 Location of RBC in a Series 505 Base

Models Used in

Series 505 Base

RBC Placement in

Base

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