
3.2.2 Label number guide for Figure 1 GUID-0B169260-D5EE-4D87-B296-9B39FAA3ABC4 v2
Table 2: Explanations to inputs / outputs
Item No. Name Definition Remark
1 OC input Optocoupler input of bay
unit
33 binary inputs per bay unit
2 CR output Relay (contact) output of
bay unit
19 binary outputs per bay unit
3 U, I input Analogue input of bay unit Assignment to SP functions is fixed.
Assignment to BP functions is partly
configurable.
4 BP input Logical input of BP part 20 logical inputs per bay unit
5 BP output Logical output of BP part 120 logical outputs per bay unit
Table 3: Explanations to protection function part
Label No. Name Definition Remark
6 SP Station protection part Contains station protection
functions
SP function Station protection function Available functions
for example, BBP, BFP, EFP, ..
7 BP Bay protection part Contains bay protection functions
BP function Bay protection function Available functions
for example, DIST, OCDT, ..
Table 4: Explanations to signal connections
Label No. Definition Remark
8 OC input assigned to SP function Assignment via software HMI500
for example, 13710_Start BFP_L1_1
9 SP function assigned to CR output Assignment via software HMI500
for example, 23105_BFP TRIP
10 OC input assigned to BP input Assignment via software HMI500
for example, 111205_DIST Ext. Block
Dist.
11 BP input assigned to BP function Assignment via software HMI500
for example, DIST: Ext Blk Dist
12 BP function assigned to BP output Assignment via software HMI500
for example, DIST: Com Send
13 BP-output assigned to CR output Assignment via software HMI500
for example, 211880_ DIST Com
14 BP-output assigned to SP function Assignment via software HMI500
for example, DIST: Trip_DIST →
13785_BP Start BFP L1L2L3
15 SP-function assigned to BP input Assignment via software HMI500
16 OC-input assigned to SP function and BP
input
Assignment via software HMI500
for example, 11530/ 118515_Q0 Open
and CB OPEN
17 SP function and BP output assigned to CR
output
Assignment via software HMI500
for example, 21110/ 220815_TRIP
18 Internal connections between BP-
functions
Assignment via software HMI500
19 Internal connections between SP-
functions
Automatic assignment done by REB500
ITT-system (ITT = intertripping)
1MRK 505 403-UEN Rev. C Section 3
Overview
Bay protection functions REB500 9
Application manual
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