Nordson Encore iControl 2, Configuration, Preset Setup, Operation

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Standard System Configuration
3-16
Part 1056418-07
E 2019 Nordson Corporation
Encoded Flagging
(contd)
Flag Example Signal on
Inputs:
Binary Code Part ID
1
2
3
4
5
6
7
8
00000111
(7)
1 00000001 1
2 00000010 2
1 and 2 00000011 3
3 00000100 4
1 and 3 00000101 5
2 and 3 00000110 6
1, 2, and 3 00000111 7
Flag Filter
The flag filter is a counter representing the travel distance during which the
part ID inputs must receive a valid part ID signal before reading the signal.
The counter resets when the part ID changes. The filter prevents the
reading a false part ID from the solid edges of a part flag or other objects
such as parts or hangers. The filter value must always be positive. The
following example illustrates the process:
1. All beams are broken. Part ID is 255. Flag filter counter starts.
2. Beams 1, 2, and 3 are broken. Counter is reset. Part ID is 7.
3. Flag filter counter reaches filter setting. Part ID is read.
4. All beams are broken. Counter is reset. Part ID is 255.
5. No beams are broken. Part ID is 0, which is invalid. Flag filter counter
is reset and waits for valid part ID before starting.
255
Filter Length (Travel Distance)
7
7
255
0
Read Input
Part ID
2 1 3 4 5
Flag Travel Direction
Figure 3-13 Flag Filter Example