REM 543 Protection,
Monitoring and Control
Page 17
Technical Reference Manual
Part 1, General
ABB Network Partner
4.1.1.7.
Communication
The REM 543 machine terminal provides the SPA and LON serial communication pro-
tocols.
In a customer-specific machine terminal configuration, special events can be generated
with the EVENT230 event function. EVENT230 is documented on the CD-ROM
“Technical descriptions of Functions” (1MRS750889-MCD).
For more information about communication in the REM 543 machine terminal, refer to
section “Serial communication”.
4.1.2.
Configuration
4.1.2.1.
Relay configuration
The Relay Configuration Tool is based on the standard IEC 1131-3. The standard
defines the programming language used for relay configuration. The programmable sys-
tem of REM 543 machine terminals allows the output contacts to be operated in accord-
ance with the state of the logic inputs and the outputs of protection, control,
measurement and condition monitoring functions. The PLC functions (e.g. interlocking
and alarm logic) are programmed with Boolean functions, timers, counters, comparators
and flip-flops. The program is written in a function block diagram language by using the
configuration software.
Fig. 4.1.2.1.-1. Example of a machine terminal configuration with the Relay Configura-
tion Tool.