Vega VEGACOM 557 Profibus FMS Bedienungsanleitung PDF herunterladen (Seite 30)

30 VEGACOM 557 Profibus FMS

Setup

FB245: RECEIVE component

The functional component FB245 gives a receive order to the CP. A difference is made be-

tween the orders RECEIVE and RECEIVE_ALL. With RECEIVE_ALL (A-NR is 0) receipt data of

individual emission orders are received and the order RECEIVE_ALL is recommended here to

read in measured values. The information in which data component the received data should

be saved, was provided previously with the transmission order. Therefore no further param-

eters are necessary for RECEIVE_ALL.

Important:

To ensure that the receive data can be always accepted from AG, the FB245 (RECEIVE_ALL)

must be called up with each program cycle, even if no transmission order was given immedi-

ately before.

FB245: RECEIVE_ALL (A-NR=0)

Parameter Format Description Example

SSNR KY Interface number KY 0,0

A-NR KY Order number KY 0,0

ANZW MW Indication value MW 2

QTYP KC Source type : Data component KC NN

DBNR KY Data component number KY 0,0

QANF / ZANF KY Relative initial address within the type KY +0

QLAE / ZLAE KF Number of source/destination data KF +0

PAFE MB Parameter setting error MB 255

In this example, received data are transferred to AG

4.4.4 FB247: CONTROL component

With the CONTROL component, the indication word ANZW and the failure indication PAFE are

updated. Status in failure information can be read in for further processing.

This FB must be applied before calling up a transmission order (FB244). FB244 must be called

up only if no transmission order is running. This is done by evaluation of the indicating word.

This prevents the transmission order from not being accepted due to an inadmissible CP

status.

FB247: CONTROL

Parameter Format Description Example

SSNR KY Interface number KY 0,0

A-NR KY Order number KY 0,1

ANZW MW Indication value MW 2

PAFE MB Parameter setting error MB 255

In this example, the current indication word is saved in marker word 2 and the current failure

indication in marker byte 255.

1 2 ... 25 26 27 28 29 30 31 32 33 34 35 ... 55 56

Keine Kommentare

Vega VEGACOM 557 Profibus FMS Bedienungsanleitung Seite 30