Pepperl+Fuchs IUH-F190-V1 Series Manual page 46

IUH-F190-V1-*
Operation
Activate/Deactivate Filter MF
Command MF activates or deactivates the filter masks.
Command: MF<ChanNo><Value><CHCK><ETX>
Response: <Status><ChanNo><CHCK><ETX>
The following values are possible:
0 = Deactivate filter masks
1 = Activate filter masks - mode 1
2 = Activate filter masks - mode 2
Example:
MF11 activates the filter masks for IDENTControl channel 1
Command MF - Mode 1
In total, there are 15 tags in the measurement range of the read/write head, with three groups of
five marked as either A, B, or C. The filter is now set to "B" by the command FI.
If you execute command MF11 (Activate Filter - Mode 1), this command affects all subsequent
commands.
If a write command is executed next, all "B" tags in the measurement range are selected and
are assigned a 'Selected' flag. The write command is executed only for tags with a Selected
flag.
When the filter is set to "B", command MF11 (Filter Activated - Mode 1) selects all "B" tags; the
following commands address the selected "B" tags.
Read/write head
1
Tags "A", "B", "C"
2
Filter mask
3
Selected flag
4
Command MF - Mode 2
In total, there are 15 tags in the measurement range of the read/write head, with three groups of
five marked as either A, B, or C. The filter is set to "B" by command FI.
If you execute command MF12 (Activate Filter - Mode 2), this command affects all subsequent
commands.
46
1 2
A
A
A
A
A
C
C
C
3 4
B
B
B
B
B
C
D
C