Functional Description Of Hardware - Beckhoff C1120 Technical Documentation Manual

C1120 S5 to II/O Lightbus Interface Beckhoff II/O-Lightbus System
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Functional description of Hardware

C1120
General
The interface card C1120 is an intelligent interface between the BECKHOFF II/O-Lightbus
System and a SIEMENS SIMATIC S5 PLC. The SIEMENS PLC program is enabled to
access binary and analog inputs and outputs of the II/O-Lightbus System via a Dual Ported
RAM of the interface card. The I/O addresses of the II/O-Lightbus System are mapped to the
S5 I/O address memory map with a configuration program running on a personal computer.
The interface card C1120 is placed in a PLC slot for 'intelligent peripherial devices'.
Date 27.06.97 Version 2.1 Page 3 of 52