ABB REX 521 Technical Reference Manual, General

34
1MRS 751108-MUM
Protection Relay
Technical Reference Manual, General
REX 521
Fig. 4.1.12.5.-1 Example of a SPA-based substation automation system
In the case of longer transmission distance, for example between MicroSCADA
system and a substation, the system configuration presented in the following figure
(Fig. 4.1.12.5.-2) is recommended.
O
I
SPAC 331 C
spasysrex_b
C
E
F
I
0
MicroSCADA
SPA-ZC22
SPA-ZC21
RER 103
REX 521 SPACOM REF 54_REX 521
REX52x
REX52x
O
O
1 2 3 4 5 6 7 8
1 2 3 4
T
12
345
R
12
345
_
L
P
1234 56
N
+
S
1234 5678
S
1234
5
2
SPA-ZC 22
R
Ser. No
110/125/220 V DC
110/120/230/240 V AC
RS
SPA
OPTICAL
MASTE
SLAV
0011 11
1100 0
0
00
01
11
1
1
0111
1001
1001
S
5B0M
4B1M
3B2M
2B3M
1B4M
1
0
S
POWE
AUX
INT
SERIAL
RS
SERIAL
SPA / RS 485
S
U
AUX
24/48/60 V DC
Optical SPA-bus
COM-port (RS 232)
SPA-bus
COM-port (RS 232)
Protocol X

ABB REX 521 Specifications

General

Brand	ABB
Model	REX 521
Category	Other
Language	English