Manual

Rockwell Automation Publication 1756-UM007C-EN-P - November 2011
88 1756-HSC Data Structures
C.Preset[x]

DINT Decimal Designates the Preset value. Module begins counting at
this value.
Values range from 0…16,777,214.
IMPORTANT: This value cannot be >
the Rollover value. This
value also must = 0 when you are using Period Rate and
Continuous Rate modes.
Yes
C.Scaler[x] INT Decimal When using Frequency mode, set this value as a multiple of
10 ms between 10-2000. If in Frequency mode and the value
is 0, the module defaults to 1 second time base.
In Period Rate and Continuous Rate modes, the scaler
determines the number of half-cycles of the incoming pulse
train in the sample period. The 4 MHz count value in the
Present Value tag is incremented within the pulse train set
by the Scaler tag.
Acceptable numbers for the scaler are: 1, 2, 4, 8, 16, 32, 64,
128, 256. There is one Scaler value for each counter. The
default value for each Scaler is 1; a 0 is equivalent to 1.
Yes
C.OperationalMode[x] SINT Decimal Designates an operational mode.
0 = Counter mode.
1 = Encoder x1 mode.
2 = Encoder x4 mode.
3 = Counter not used.
4 = Frequency mode.
5 = Period Rate mode.
6 = Continuous Rate mode.
No
C.StorageMode[x] SINT Decimal Designates a storage mode.
0 = No store mode.
1 = Store and continue mode.
2 = Store, wait, and resume mode.
3 = Store and reset, wait, and start mode.
4 = Store and reset, and start mode.
Yes
C.ZInvert.x BOOL Decimal Designates whether the Z input is inverted.
0 = Do not invert Z input.
1 = Invert Z input.
Yes
C.FilterA.x BOOL Decimal Designates whether channel A uses a filter.
0 = Do not use filter.
1 = Use 70 Hz.
Yes
C.FilterB.x BOOL Decimal Designates whether channel B uses a filter.
0 = Do not use filter.
1 = Use 70 Hz.
Yes
C.FilterZ.x BOOL Decimal Designates whether channel Z uses a filter.
0 = Do not use filter.
1 = Use 70 Hz.
Yes
-This setting may be overridden by the output tag setting. See page 22 and page 23 in Chapter 2 for details.
1756-HSC Module Configuration Tags
Name Data
Type
Style Definition Change
During
Operation
(1)