Sample Applications
5-16
FC 56
J31069-D0155-U001-A0-7618
Dynamic operation
With this mode, MDSs can enter or leave the transmission field at all times. The
programming sequence is shown below.
Process first MDS in
UDT 200.
ANZ_presence_change
= 1
GET
MDS_Present?
Yes
Scan whether the number of MDSs
in the field has changed.
Scan UID. The ANZ_presence_change
bit is automatically reset.
Only one MDS is processed. If
there are several MDSs in the
field, processing is done in the
next program loop.
No
END (with
sub_command = 00)
Yes
No
END turns the MDS off. If there
are more MDSs in the field, the
ANZ_presence_change bit is al-
ways set so that the other MDSs
can be processed in subsequent
program loops.
After the last MDS leaves the field, a
branch is made here to “No.”
Remarks:
This method can also be used with static operation. However, remember that MDS
processing takes longer since the GET command must be executed for each MDS.
Содержание MOBY FC 56
Страница 12: ...Introduction 1 6 FC 56 J31069 D0155 U001 A0 7618 ...
Страница 63: ...5 1 FC 56 J31069 D0155 U001 A0 7618 Sample Applications 5 ...
Страница 80: ...Sample Applications 5 18 FC 56 J31069 D0155 U001 A0 7618 ...
Страница 90: ...Entry Exit Check of an MDS in an SLG Field 6 10 FC 56 J31069 D0155 U001 A0 7618 ...
Страница 94: ...System Configuration 7 4 FC 56 J31069 D0155 U001 A0 7618 ...
Страница 100: ...Commissioning Guidelines 8 6 FC 56 J31069 D0155 U001 A0 7618 ...
Страница 101: ...9 1 FC 56 J31069 D0155 U001 A0 7618 Error Messages and Trouble Shooting 9 ...
Страница 152: ...Programming MOBY ASM on PROFIBUS DP V1 B 30 FC 56 J31069 D0155 U001 A0 7618 ...