Yokogawa Removable Chassis DX1000N - Manual (Page 113)

Measurement Channels and
Alarms
IM 04L41B01-01E
3-19
1
2
3
4
5
6
7
8
9
10
11
12
App
Index
0 0 1 1 1 2 2
P01
Number of pulses
per scan interval
102ch
Sum value
101ch
Reset count
Pulse input
Scan interval
Time
K01
reset value
(Resets the value below the reset value)
(Sum)
Channel 101: Reset Count
Calculates the number of times the pulse sum value is reset.
The expression “((102+P01).GE.K01)” is set to 1 when “the previous pulse sum value
(102) + the current pulse count (P01)” is greater than the reset value (K01). Otherwise,
the expression is set to 0. The value of channel 101 is incremented when the pulse
sum value exceeds the reset value.
Channel 102: Pulse Sum Value
Calculates the pulse sum value.
Under normal conditions, the pulse sum value TLOG.SUM (P01) is calculated. When
the pulse sum value is greater than or equal to the reset value (K01), the pulse sum
value is set to the amount exceeding K01.
Channel 103: Total Sum Value
Multiplies the reset value (K01) by the reset count (101) and adds the pulse sum value
(102) to derive the total sum value.
Note
• The computation is performed in order from the channel with the smallest channel number
in one scan interval. If the channel number in the expression is greater than or equal to the
channel number in which the expression is assigned, the previous computed result (previous
value) is used for the channel in the expression.
• If the pulse input value of the scan interval is greater than the reset value, correct
computation cannot be achieved.
3.10 Counting Pulses (/PM1 Option)