Overview

The SCB1 (Serial Communication Board 1) has one fiber-optic connection and can be used to establish:

• A peer-to-peer connection between several devices with a max. transfer rate of 38.4 kbits/s
• A serial I/O system (see Figure 4/30) in conjunction with the serial interface boards SCI1 and SCI2.

This can be implemented to

1. Expand the binary and analog inputs and outputs of the basic units

2. Assign the terminals of the inputs and outputs customer-specifically (e. g. NAMUR).

The following board combinations are possible:

SCB1 with one

SCI1 or SCI2 each

SCB1 with two

SCI1s or SCI2s each

SCB1 with one

SCI1 and SCI2 each

The SCB1 interface board is plugged into location 2 or 3 of the electronics box.