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Minimum: logging in minimum measured data at the sampling interval
Maximum: logging in maximum measured data at the sampling interval
Trigger: Select various types like “by time” or “by change” or disable
By Time: Data log based on Log Speed and Log Method
By Change: Depends on Tolerance setting. Log speed and Log Method is disabled if this option
is selected and if this option is selected sampling rate is fixed at 1 sec. This option is
selected to save memory in PC If data logging is required in set log speed (fixed time
interval), select Trigger as by timer. If data logging is required only when there is
change in process value, then select Trigger as by change. This will save memory
Tolerance: This is enabled if “by change” is selected at Trigger Type. For ex: If tolerance is set at
0.5, then if the new process value is more than or less than 0.5, then only the new
sample will be logged
Data Byte Type: Choose 2 or 4 or 8 byte
Range Low: Range low for specific channel in selected device, ex: 4.00 mA
Range High: Range high for specific channel in selected device, Ex: 20.00 mA
Decimal: select one of the options - 0, 1, 2, 3 or 4
Gain: It is a multiplier to correct the sensor error. The correct value = (the process value + offset)
x gain
Offset: It is offset value to correct the sensor error
Unit: The engineering unit of input
Sensor: It displays input type automatically as per the type of IO card selected
Scale Low: Defines the low scale with decimal if necessary. For instance, input 0-10 V, the Scale
Low can be set up with value 0.00 to be correspondent to low range 0 V.
Scale High: Defines the high scale with decimal if necessary. For instance input 0-10 V, the Scale
High can be set up with value 100.00 to be correspondent to high range 10 V.
6.2.3.3.4 Event
The Event is frequently used for Alarm purpose. Event can also be used for digital output
DO, Timer, Totalizer, Counter or Report.
Type: There are various types of H, L, HH, LL, R, r or Error to be selected for job or Alarm
purpose.
H: High limit. When the process is over high limit, the alarm or job is actuated.
L: Low limit. Any the process is lower than low limit, the alarm or job is actuated
HH: High high limit, to set up another limit higher than high limit for double warning.
LL: Low low limit, to set up another limit lower than low limit for double warning.
R: Increasing rate of change. The job or alarm is actuated when the rate of increasing process
value is greater than the specified rate time interval. For example, when the Set point is set to
100_1S, if the process is increasing greater than the value 100 in 1 second, then job or alarm
will be actuated.
r: Decreasing rate of change. The job or alarm is actuated when the rate of decreasing process
value is greater than the specified rate time interval. For example, when the Set point is set to
50_2S if the process is decreasing greater than the value 50 in 2 seconds, then job or alarm is
actuated.
Dev+: It is deviation+ event. This event will be triggered on the positive deviation of process value.
The job or alarm is activated when the process value is deviated by the value higher than
set point from the previous process value.
For example,
Set point =10
At 10.00.01 Hrs, Tag1=40
At 10.00.02 Hrs, Tag1 = 51
Then, job or alarm is activated
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