210 Rockwell Automation Publication 2080-UM002N-EN-E - November 2022
Chapter 10 Use the High-Speed Counter and Programmable Limit Switch
The outputs shown in the black boxes are the outputs under the control of the HSC sub-
system. The mask defines which outputs can be controlled. The high preset output or low
preset output values (HSCAPP.HPOutput or HSCAPP.LPOutput) define if each output is either ON
(1) or OFF (0). Another way to view this is that the high or low preset output is written through
the output mask, with the output mask acting like a filter.
The bits in the gray boxes are unused. For the 10-point controller, the first 4 bits of the mask
word are used and the remaining mask bits are not functional because they do not correlate to
any physical outputs on the base unit. For the 16, 24 and 48-point controllers, the first 6, 10 and
20 bits of the mask word are used, respectively.
The mask bit pattern can be configured only during initial setup.
The High Preset Output defines the state (1 = ON or 0 = OFF) of the outputs on the controller
when the high preset is reached. For more information on how to directly turn outputs on or
off based on the high preset being reached, see Output Mask Bits (HSCAPP.OutputMask)
on
page 209.
The high output bit pattern can be configured during initial setup, or while the controller is
operating. Use the HSC function block to load the new parameters while the controller is
operating.
The Low Preset Output defines the state (1 = “on”, 0 = “off”) of the outputs on the controller
when the low preset is reached. See Output Mask Bits (HSCAPP.OutputMask)
on page 209 for
more information on how to directly turn outputs on or off based on the low preset being
reached.
The low output bit pattern can be configured during initial setup, or while the controller is
operating. Use the HSC function block to load the new parameters while the controller is
operating.
Table 53 - Effect of HSC Output Mask on Embedded Outputs
Output Variable 32-Bit Signed Integer Data Word
32…20191817161514131211 109 8 7 6 5 4 3 2 1 0
HSCAPP.HPOutput (high
preset output)
01 01 01 01 001 1 0001 1 001
HSCAPP.OutputMask (output
mask)
1 1 00000001 1 0001 1 001 1
Embedded output (10-point)
0 1
Embedded output (16-point)
0 1 0 1
Embedded output (24-point)
1 0 1 0 1
Embedded output (48-point)
0 1 0 1 0 1 0 1
High Preset Output (HSCAPP.HPOutput)
Description Data Format User Program Access
HSCAPP.HPOutput long word (32 bit binary) read/write
Low Preset Output (HSCAPP.LPOutput)
Description Data Format User Program Access
HSCAPP.LPOutput long word (32 bit binary) read/write
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