1MRS755225
Transformer Terminal
Technical Reference Manual, General
RET 54_
105
The display language combination (see table below) is identified by a three-digit
suffix in the software number printed on the front panel of the transformer terminal,
e.g. Software No: 1MRS110031-0__.
The RET 541, RET 543 and RET 545 transformer terminals differ from each other
as to the number of digital inputs and outputs as follows.
7.2.
Hardware versions of RET 541, RET 543 and RET 545
For the number of digital inputs and outputs of RET 54_ transformer terminals, refer
to section “Order number” above. The number of matching transformers and analog
inputs and outputs, and the auxiliary voltage range vary between the different
hardware versions of RET 54_. Moreover, RET 541 and RET 543 can be supplied
with an RTD/analog module. For more detailed information about the hardware of
RET 54_, refer to Section “Hardware versions” on page 11.
7.3.
Software configuration
Each RET 54_ transformer terminal allows different software configurations based
on separate functions (refer to Section “Functions of the transformer terminal” on
page 25). Functions included in the selected functionality level (refer to Section
“Ordering Information” on page 103) can be activated within the scope of the I/O
connections and considering the total CPU load of the functions.
Suffix
Language combination
001
English - German
002
English - Swedish
003
English - Finnish
007
English - Portuguese
008
English - Polish
009
English - Russian
010
English - Spanish
01
2
English - Czech
Number of inputs/outputs
RET 541
RET 543
RET 545
Digital inputs
15
25
34
Trip circuit supervision inputs
2
2
2
Power outputs (NO single-pole)
0
2
3
Power outputs (NO double-pole)
5
9
11
Signal outputs (NO)
2
2
4
Signal outputs (NO/NC)
5
5
8
Self-supervision outputs
1
1
1
