Beckhoff C1120 User Manual download pdf (Page 3)

C1120 S5 to II/O Lightbus Interface Beckhoff II/O-Lightbus System

Date 27.06.97 Version 2.1 Page 3 of 52

1 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’.

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Beckhoff C1120 User Manual Page 3