ABB REC 561, User Manual

Page: 34 / 643

Construction and hardware
characteristics - REC 561
ABB Network Partner AB
1MRK 580 148-XEN
Page 2 - 29
Version 1.0-00
• Man machine interface (MMI) is built-in to the front cover and con-
tains LEDs, an LCD and an optical connector for a front-connected
PC. For this front communication, you need an optional special
cable, with an opto-to-RS232, built-in converter.
Optionally these hardware modules are available:
• Transformer module with five voltage and five current input trans-
formers (position S2).
• A/D-conversion (AD) module for up to 10 analogue inputs, operat-
ing with a sampling frequency of 2000 Hz. It has a bandwidth of
250 Hz, and a dynamic range for currents, from 0,01 to 100
⋅
I
r
, and
for voltages, from 0,01 to 2
⋅
U
r
, (position S8).
• Up to 11 additional input/output modules, that can be of type Binary
input module (16 inputs), Binary output module (24 relays or 12
command relays), a combined Binary input/output module (8 inputs
and 12 output relays) and a mA input module for transducer inputs.
(all modules in positions S16 to S36).
• One additional optical serial communication module, intended for
remote fibre optic SPA communication. Having two modules will
enable the terminal to be a part of SMS in parallel with a Substation
Automation System (SA). The module is placed in a slot at the rear
of the Main processing module.
Fig. 2 Basic block diagrams
(X80148-2)
I
U
A/D
SP 1
SP 2
SP 3
SP 4
SP 5
SP 6
SP 7
SP 8
SP 9
SP 10
32 b
it
mi
cr
o
con
tr
ol
er
Co
mmu
ni
cat
io
n
in
out
in
out
MMI unit
MMI PC/SMS
SCS