Beckhoff C1220 Manual de usuario descargar pdf (Pagina 22)

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Software description of functions 22

Beckhoff Lightbus - PC interface card C1220

Initialisation of string communication

String communication is initialised via the handshake channel with function

0x14.

ArgumentChannel Length Function

0 1 2 3

Request

0x0A 0x14

Init

StringComm.

(0x01)

CDL no.

string Trns

CDL no.

string receive

Max. string

length

Request

0x03 0x14

Deinit

StringComm.

(0x00)

Deactivation of string communication also

deactivates all the string slaves.

0x03 0x14 0x00 No error.

0x01 Wrong CDL number for string transmit CDL.

0x02

String transmit CDL already occupied.

0x03 Wrong CDL number for string receive CDL.

0x04

String receive CDL already occupied.

0x05

Wrong transmit string base address.

0x06

Wrong receive string base address.

Argument

4 5 6 7

Offset string transmit buffer Offset string receive buffer

Deactivation of string communication also deactivates all the string

slaves.

No error.

Wrong CDL number for string transmit CDL.

String transmit CDL already occupied.

Wrong CDL number for string receive CDL.

String receive CDL already occupied.

Wrong transmit string base address.

Continuation of the table

Wrong receive string base address.

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 28 29 30

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Beckhoff C1220 Manual de usuario Pagina 22

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