Short Description Of The Hardware; Cpus; Communication Modules; The Cpu Terminal Base - ABB AC500 Introduction Manual

Short description of the hardware

Example of an AC500 system.
Figure: AC500 system, module arrangement beginning from the left: communication module, CPU, I/O
module

CPUs

Available in three performance classes:
• PM571 (64kB memory, 2 RS-232/485 interfaces - programming, MODBUS/CS31 (COM1), 1 x FBP)
• PM581 or PM582 (256kB or 512kB memory, 2 RS-232/485 interfaces - programming, MODBUS/CS31
(COM1), 1 x FBP)
• PM591 (4MB memory, 2 RS-232/485 interfaces - programming, MODBUS/CS31 (COM1), 1 x FBP)
All three types are also available with an integrated Ethernet coupler (TCP/IP).

Communication modules

For connection to standard field bus systems and integration into existing networks.
Ethernet coupler supporting the protocols TCP/IP, UDP/IP and Modbus TCP.
Coupler for fieldbus systems – PROFIBUS DP, DeviceNet and CANopen.
Up to four communication modules in any desired combination are allowed at one CPU.

The CPU terminal base

For easy plug-in mounting of a CPU and one, two or four communication modules (three types available
accordingly).
The I/O modules
Digital and analog in different versions. Can be simply plugged onto the terminal units – for local
expansion of the CPU (max. seven modules) and decentralized expansion via the FBP interface (max.
seven modules, thereof max. four analog modules). Flexible use thanks to configurable channels.
The I/O terminal units
Multi-purpose usage for both digital and analog I/Os, for 1, 2 and 3-wire designs. Enable simple
prewiring without electronics. For 24 V DC and 230 V AC, optionally for spring or screw-type terminals.
The FBP interface module
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G1
Introduction to AC500
1. Back-lighted LCD display and keypad
2. SD card slot
3. Plug-in communication modules (1 to max. 4)
4. Optionally with integrated Ethernet or ARCNET
5. FBP interface (for slave)
6. Two serial interfaces for programming, ASCII,
Modbus or CS31 field bus (master)
7. Expandable by up to seven local I/O modules
1-19
AC500 / Issued: 07.2006