UMC 112 - Trend Product Marking Systems Australia

1.2 PLC operation (option)
Loading a mask via PLC
Conversion of
binary numbers
Process
With this option one mask out of up to 127 masks (files with ending *.msk) can
be selected and loaded via a PLC (programmable logic control).
The number of the mask is transferred binary coded. The order of the masks is
determined in System > Options on the tab "File selection" (see chapter 4).
Binary numbers can be simply converted into decimal numbers. The value of a
binary number results from summating its digits that are previously multiplied
with its place value 2 i :
Example: [101]2 = 1*2 2 + 0*2 1 + 1*2 0 = [5]10
[1111110]2 = 1*2 6 + 1*2 5 + 1*2 4 + 1*2 3 + 1*2 2 + 1*2 1 + 0*2 0 = [126]10
The number of the mask to be loaded must be pending stably at the inputs E2.0
to E2.6 at least 100 ms before data transfer:
Mask to
load
E2.6 E2.5 E2.4 E2.3 E2.2 E2.1 E2.0
1 0 0 0 0 0 0 1
2 0 0 0 0 0 1 0
3 0 0 0 0 0 1 1
4 0 0 0 0 1 0 0
5 0 0 0 0 1 0 1
...
127 1 1 1 1 1 1 1
Tab. 15
If the data are pending stably the input E2.7 (data transfer) operates. For
validation the control sets the output A2.0 (data transferred) until the selected
mask is available for marking, but for at least 200 ms. If less masks are saved
than the transferred number demands, the control sets the output A2.1 (error
data transfer). This error is pending with A2.0 (data transferred), until it is
acknowledged by pressing of any button at the control or by setting of the input
E1.6 (acknowledge error).
Note
With the optional digit encoding switch number >127 are interpreted as 127. As
hundreds you can only select 0 and 1.
B_PM_UMC112_en06.doc
ÖSTLING Markiersysteme GmbH Communication 6-9