Combined Backplane Module (Cbm); Introduction; Functionality - ABB Relion 670 Series Technical Reference Manual

1MRK 505 208-UEN B
17.2.2
17.2.2.1
17.2.2.2
Technical reference manual
Module
Local Human machine interface (LHMI)
Transformer input module (TRM)
Analog digital conversion module (ADM)
Table 448: Application specific modules
Module
Binary input module (BIM)
Binary output module (BOM)
Binary I/O module (IOM)
Line data communication modules (LDCM),
short range, medium range, long range, X21
Serial SPA/LON/IEC 60870-5-103/DNP3
communication modules (SLM)
Optical ethernet module (OEM)
mA input module (MIM)
GPS time synchronization module (GTM)
Static output module (SOM)
IRIG-B Time synchronization module (IRIG-B)

Combined backplane module (CBM)

Introduction

The combined backplane module (CBM) carries signals between modules in an IED.

Functionality

The Compact PCI makes 3.3V or 5V signaling in the backplane possible. The
CBM backplane and connected modules are 5V PCI-compatible.
Some pins on the Compact PCI connector are connected to the CAN bus, to be able
to communicate with CAN based modules.
IED hardware
Description
The module consists of LED:s, an LCD, a push
button keyboard and an ethernet connector used
to connect a PC to the IED.
Transformer module that galvanically separates
the internal circuits from the VT and CT circuits. It
has 12 analog inputs.
Slot mounted PCB with A/D conversion.
Description
Module with 16 optically isolated binary inputs
Module with 24 single outputs or 12 double-pole
command outputs including supervision function
Module with 8 optically isolated binary inputs, 10
outputs and 2 fast signalling outputs.
Modules used for digital communication to remote
terminal.
Used for SPA/LON/IEC 60870–5–103/DNP3
communication
PMC board for IEC 61850 based communication.
Analog input module with 6 independent,
galvanically separated channels.
Used to provide the IED with GPS time
synchronization.
Module with 6 fast static outputs and 6 change
over output relays.
Module with 2 inputs. One is used for handling
both pulse-width modulated signals and
amplitude modulated signals and one is used for
optical input type ST for PPS time synchronization.
Section 17
621