ABB AC500 PLC - 1.1.1.1 Short Description

1 I/O bus (10-pin, female) to electrically connect the I/O terminal units
2 Slot for processor module
3 Slots for communication modules (TB511-xxx: 1 slot, TB521-xxx: 2 slots, TB541-xx: 4 slots)
4 Interface for FieldBusPlug, not for terminal base TB523-2ETH
5 Power supply (5-pin terminal block, removable)
6 Serial interface COM1 (9-pin terminal block, removable)
7 TB5x1: Serial interface COM2 (D-sub 9, female), TB523-2ETH: second Ethernet network
interface
8 Network interfaces: TB5xx-ETH: Ethernet, TB5xx-ARCNET: ARCNET
9 Holes for screw mounting
10 DIN rail
1.1.1.1 Short Description
Terminal bases are used as sockets for processor modules and communication modules. Up to
10 I/O terminal units for I/O expansion modules can be added to these terminal bases.
The terminal bases have slots for one processor module and for communication modules as
well as terminals and interfaces for power supply, expansion and networking.
Terminal Base TB51x TB52x TB54x
Slots for processor modules 1 1 1
Slots for communication mod-
ules
1 2 4
Device Specifications
Terminal Bases (AC500 Standard) > TB51x-TB54x
2019/04/17 3ADR010121, 13, en_US 5