10
1MRS755225
Transformer Terminal
Technical Reference Manual, General
RET 54_
3. Introduction
3.1.
General
The RET 54_ transformer terminal is part of the ABB Distribution Automation
system and extends the functionality and flexibility of the concept further. This is
possible due to the modern technology applied both in hardware and software
solutions.
Increased performance is achieved by utilizing the multiprocessor architecture.
Digital signal processing combined with a powerful CPU and distributed I/O
handling facilitates parallel operations and improves response times and accuracy.
The HMI including an LCD display with different views makes the local use of the
RET 54_ transformer terminal safe and easy. The HMI
1
instructs the user how to
proceed.
RET543right
Fig. 3.1.-1
RET 54_ transformer terminal
3.2.
Hardware versions
The family of RET 54_ transformer terminals contains several hardware versions.
Depending on the number of I/Os available, the product is called RET 541, RET 543
or RET 545, see the following tables.
1. HMI is referred to as MMI in the terminal and in the Relay Setting Tool