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C1300 VME to II/O Interface Unit Beckhoff II/O-System

Date : 18.12.95 Version : 2.01 Page 11 of 44

3. Function Description Software

3.1. About the Software

Address space (hex) Funktion

000 - BFF Data area

(input, output )

3 kByte

C00 - CFF Handshake-channel 0 : VME -> C1300

(configuration, test, analysis)

D00 - DFF Handshake-channel 1 : C1300 -> VME

(configuration, test, analysis)

E00-FF9 reserved

FFA - FFF GCB (General Control Block)

(demand, ready und error mask)

Overview : Distribution of the port‘s workspace.

The port between VMEbus and C1300 module enables the following functions:

- Data exchange of signal states

- Test- und analysis functions for II/O-System

- Configuration

- Control of signal states

The II/O System can be configurated through the comunications channels by 4 functions. This

way the input and output lines are distributed to the addresses in the DPRAM. The

communications channels can also be used to reach nine more functions for testing and anal-

ysis.

The lower 2 Kbyte area, which is used by the C1300 module in the VME address space, is the

place for the data areas of the CDLs. The call to refresh the signal states is done by setting a

bit in the demand mask of the GCB ( General Control Block ). The ready message can be

taken from the predefined bit in the ready mask of the GCB.

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Beckhoff C1300 Bedienungsanleitung Seite 11