Siemens CP 243-1 IT, Техническое руководство

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Programming 03/03
CP 243-1 IT
J31069-D0429-U001-A0-7618
100
Call:
ETHx_XFR
START
EN
DONE
Done
Chan_ID
CHANNEL
ERR
Error
Data
DATA
Abort ABORT
Always_On
START_BIT
Fig. 11 Call of the subprogram ETHx_XFR
Input parameters:
Name Type Meaning
START BOOL Input condition for triggering a read/write job
0:
Don't trigger read/write job
1: Trigger read/write job
Chan_ID BYTE Number of the channel via which the data is to
be accessed. This channel must be configured
as client.
Value range: 0 to 7
Data BYTE Number of the channel-specific data block from
the configuration which describes the read/write
job to be executed.
Value range: 0 to 31
Abort BOOL Input condition for canceling a data access
0:
Don't cancel data access
1: Cancel data access
Table 21 Input parameters (ETHx_XFR)