16.1.5 SFC 232 - FETCH - Fetch from page frame
The FETCH block initializes a FETCH order in the partner station. The FETCH order
defines data source and destination and the data source is transmitted to the partner sta-
tion. The CPU from VIPA realizes the definition of source and destination via a pointer
parameter. The partner station provides the Source data and transmits them via
SEND_ALL back to the requesting station. Via RECEIVE_ALL the data is received and is
stored in Destination. The update of the indicator word takes place via FETCH res. CON-
TROL.
The handshake for initializing FETCH is only started, if
n the FB RLO receives "1".
n the function has been released in the according CP indicator word
(order active = 0).
Parameters
Name Declaration Type Description
SSNR IN INT Interface number
ANR IN INT Job number
IND IN INT Mode of addressing
ZANF IN ANY Pointer to data destination
PAFE OUT BYTE Parameterization error
ANZW IN_OUT DWORD Indicator word
Information for indirect parameterization
Ä
Chap. 16.1.2.3 ‘Source res.
destination definition’ page 887
Description
VIPA SPEED7
System Blocks
Fetch/Write Communication > SFC 232 - FETCH - Fetch from page frame
HB00 | OPL_SP7 | Operation list | en | 18-30 899
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