Omron SYSMAC CS Series Operation Manual page 23

Features and Functions
CPU Unit
DM area allocation
A (gain for span
adjustment)
Transferred
B (zero adjust-
ment value)
Stepdown
Pulse Input Instantaneous
Value Conversion
Pulse Accumulation
Answer Input
10
Maximum value in range
Analog I/O Unit
Minimum value in range
Minimum value in range
This function reduces the number of pulses by 1/10, 1/100, or 1/1,000. It only
operates for an accumulating counter (and not for instantaneous values).
Make this setting to prevent accumulating counter overflow. If the number of
pulses is 3,000, for example, setting the stepdown rate to 1/100 will reduce
the number to 30, and the totalizing will then be based on that value.
This function is supported by CS1W-PPS01 Isolated-type Pulse Input Units
only.
This function counts the number of pulses per time unit and converts the num-
ber to an instantaneous value (pulses/time unit). Any of the following time
units can be selected: 1 s, 3 s, 10 s, 30 s, or 60 s. (These match the cycles for
conversion to instantaneous values.)
When the number of pulses per time unit (i.e., pulse rate) is low, lengthen the
time unit. The instantaneous value stored, however, can only be refreshed at
intervals of this time unit.
If there is fluctuation in the instantaneous values, the moving average function
can be used to even the values out through averaging. Calculate the moving
average for the specified number of values, and then convert it to the number
of pulses per time unit. To determine the number of values for averaging,
observe the operating status.
This function is supported by CS1W-PPS01 Isolated-type Pulse Input Units
only.
Pulse Input Units can accumulate pulses within a range of 0 to 9,999 (0000 to
270F Hex). With each accumulation conversion period, the number of input
pulses after the stepdown is added. If the accumulated value exceeds 9,999,
the number is carried to the next digit. There is no fifth digit, however, so an
overflow can occur, but the value is retained only up to the fourth digit. When
the power is turned ON or the Unit is restarted, the accumulated value is reset
to 0 and the Accumulation Reset Flag turns ON for 10 seconds.
This function is supported by CS1W-PPS01 Isolated-type Pulse Input Units
only.
During analog output, the actual analog output (current or voltage) signal can
be checked by being read again from the analog output terminals. This func-
tion is used for checking for actual output load discrepancies due to external
load resistance, or for checking actual analog signal values when an output
rate-of-change limit is used.
This function is supported by CS1W-PMV01 Isolated-type Analog Output
Units only.
After adjustment
B (zero adjustment value)
A (gain for span adjustment)
Maximum value in range
Section 1-2
Before adjustment