C1200-000 | Lightbus interface card

The Beckhoff II/O system The Beckhoff Industrial Input/Output System, or II/O system for short, consists of a central module and a fieldbus based on fiber optic cables

Various II/O peripheral modules are available for processing the process image. These modules are connected to each other in a ring structure. The use of the optical fiber (LWL) results in a low sensitivity to interference and a high transmission rate of 2.5 MBd. Errors that occur in the fiber optic ring are detected by the driver software and reported to the host system. Implemented functions for ring diagnostics then enable quick error detection and elimination. A communication protocol optimized for speed and simplicity is defined for data transmission between the central module and peripheral modules. This communication protocol is also called telegram in the following. The communication on the fiber optic ring is controlled by the central module. It sends telegrams that pass through the individual modules in the fiber optic ring and are ultimately received and checked again.

The C1200 central module is an interface between the II/O system and an IBM-compatible PC. With the help of the C1200 module, fast processing of one of the

Sensors/actuators of the II/O system enable a specific process image.

Using hardware configuration (Jumper JP5), the plug-in card can be mapped either into the memory area or into the I/O area of the PC.

Four base addresses can be selected in the memory area. It will be a

Memory area of 2 kilobytes occupied.

Five base addresses can be selected in the I/O area. It will be a

Memory area of 32 bytes occupied.

For configuration of the interface card, see installation instructions.

Technical data

Interface module: XILINX 3030

Data connection: II/O-Lightbus

Transfer rate: 2.5 Mbaud, 32 bit useful information in 25 µsec

Supply voltage: 5 V

Current consumption: 250 mA