Rockwell Automation Publication 2080-UM002G-EN-E - March 2015 135
Use the High-Speed Counter and Programmable Limit Switch Chapter 8
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.
High Preset Output (HSCAPP.HPOutput)
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 134.
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.
Low Preset Output (HSCAPP.LPOutput)
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 134 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.
Embedded output
(48-point)
0 1 0 1 0 1 0 1
Effect of HSC Output Mask on Embedded Outputs
Output Variable 32-Bit Signed Integer Data Word
32…20191817161514131211109876543210
Description Data Format User Program Access
HSCAPP.HPOutput long word (32-bit binary) read/write
Description Data Format User Program Access
HSCAPP.LPOutput long word (32-bit binary) read/write
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