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

Date : 18.12.95 Version : 2.01 Page 31 of 44

Funktion 10

: Transmit CDL-Configuration

The CDLs described above are split into parts, so that they can be transmitted

through the handshake channel 0. The information for a message should not be

split in this process. Transmission can be activated by function 10h

channel length function

(hex)

empty argument

argument

... argument

call

nn 10 00 aa bb db1,0 dbn,19

channel length function argument

argument

comment

response

04 10 aa 00 o.k.

04 10 aa 01 CDL data error

(

e.g.: Pointer outside Data area

of DPRAM

)

04 10 aa 02 CDL overflow

00 = start of CDL transfers

01 = further Descriptors of the same CDL

02 = last transmission of the same CDL

signal state No. bb ( 0 - 7)

db1,0

desciptor 1, byte 0 of a CDL

...

dbn,19

desciptor n, byte 19 of a CDL

Transmissions of module addresses, control byte and pointer to data bytes are

established in Intel Notation ( lower Byte to lower address ).

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Beckhoff C1300 Bedienungsanleitung Seite 31