System Planning - ABB AC500 Introduction Manual

You can use the following components to add additional I/O modules:
If you want ...
•
to connect a digital 24 VDC sensor or
actuator to the CPU ...
•
to connect a 115-230 VAC sensor or
actuator to the CPU ...
•
to connect an analog 24 VDC sensor or
actuator to the CPU ...
•
to label the I/O channels ...
The following components are recommended for fieldbus communication:
If you want ...
•
the system to act as a master on
PROFIBUS DP, DeviceNet or CANopen
fieldbuses ...
•
the system to act as a slave on
PROFIBUS DP, DeviceNet or CANopen
fieldbuses ...
•
to exchange data via the network ...

System planning

Consider the following when planning your AC500 system:
•
The AC500 PLC consists of a CPU Terminal Base TB5xx (from 1 to 4 coupler slots) and a pluggable
CPU. Three different CPU classes are offered: from PM571 with 64kB memory up to PM591 with
4MB memory; available also with integrated Ethernet coupler.
•
Proper CPU Terminal Base selection requires that sufficient slots are available for all current or
future network and fieldbus communication modules (e.g. Ethernet, ARCNET, PROFIBUS, etc.) if
required.
•
Up to 4 communication couplers can be connected to the CPU through the dedicated CPU terminal
base.
•
All types of external communication couplers can be used together in the same time but only up to 4
external couplers in total (e.g. a mix of coupler types like Ethernet + Ethernet + Profibus DP +
CANopen, etc ...).
•
The total number of communication couplers (internal + external) is limited to 5.
•
The CPU terminal base is always the left-most device in the system.
•
An external 24 Vdc power supply has to be provided to the CPU Cluster; the additional I/O modules
have to be installed to the right of the PLC module.
•
The AC500 PLC module supports as many as 7 local I/O expansion modules.
•
An additional process power supply has to be provided for the I/Os of each module. Each I/O
expansion module can be powered with its own power supply (for isolation purposes) or the same
power supply can also be used.
•
One FieldBusPlug can be plugged directly into an AC500 PLC cluster
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G1
Introduction to AC500
... use the following component(s):
DI524 (32 DI ), DC522 (16DC), DC523 (24DC),
DC532 (16DI/16DC) or DX522 (8DI/8 DO-R) with
the corresponding terminal unit with screw or
spring connection TU515/516 or TU531/532
DX531 (8DI 115-230 V AC / 4 DO-R) +
corresponding Terminal Unit TU531/532 with
screw or spring technology
AI523 (16AI U/I/PT100), AO523 (16AO), AX521
(4AI/4AO U/I/PT100) or AX522 (8AI/8AO
U/I/PT100) + corresponding Terminal Unit
TU515/516
TA523 (Pluggable Marking Holder) + TA525 Set
of Plastic Markers
... use the following component(s):
CM572-DP for PROFIBUS DP, CM575-DN for
DeviceNet or CM578-CN for CANopen
FieldBusPlug standard plugs like PDP22-FBP
(PROFIBUS DP slave) or DNP21-FBP
(DeviceNet) or other one's
CM577-ETH to achieve Ethernet TCP/IP
communication with integrated 2-ports switch
1-34
AC500 / Issued: 07.2006