Yokogawa Value Series FX1000 - Manual (Page 90)

Measurement Channels and
Alarms
IM 04L21B01-01EN
3-17
3
2
1
4
5
6
7
8
9
10
11
12
13
14
App
Index
3.10 Counting Pulses (/PM1 Option)
The pulses applied to the pulse input terminal are counted on a computation channel.
For a description of the function, see section 1.1.
Setup Screen
Press MENU (to switch to setting mode), and select the Menu tab > Math channel >
Expression, Alarm
Setup Items
• First-CH, Last-CH
Select the target computation channels.
• Math
Select On.
• Math > Calculation expression
Enter the equation using symbols.
Q01 to Q08: Displays the number of pulses per second.
P01 to P08: Displays the number of pulses per scan interval.
* The numbers 01 to 08 correspond to the pulse input terminal numbers.
For the procedure to set the computation channels, see section 9.1.
The procedure is explained below using examples.
• Example 1: Pulse Sum Value
Display the sum value of the pulse signal applied to pulse input terminal number 6.
Number of pulses
per scan interval
TLOG.SUM
Pulse sum value
Pulse input
Scan interval
Time
(Sum)
P6
Expression
The following table shows which calculation expression to assign to which computation
channel. Set the span lower/upper limit and unit according to the application.
Channel Expression Description
101 TLOG.SUM(P6) Sum of the number of pulses per scan interval