Setting Alarms - YOKOGAWA GX20 User Manual

1.4.2

Setting Alarms

Path
Description
IM 04L51B01-01EN
1.4 Configuring Pulse Input Channels (Release number 3 and later)
GX/GP: M ENU key > Browse tab > Setting > Setting menu Pulse input channel settings
> Alarm
Web application: Config. tab > Pulse input channel settings > Channel range (display
example: 0701-0710) > Alarm
Hardware configurator: Pulse input channel settings > Channel range (display example:
0701-0710) > Alarm
Setup Item
First-CH
Last-CH
First-CH, Last-CH
Set the target channels. The channels that you can specify appear depending on the module
configuration.
Level 1, Level 2, Level 3, Level 4
Setup Item
On/Off
1
Type
1
Alarm value
1, 4
Hysteresis
1
Logging
1
Output type
3
Output No.
1 Appears when Level (1 to 4) is set to On.
2 Appears when Calculation of the range setting is set to Delta.
3 Appears when Output No. is not set to Off.
4 Appears when the type is set to high limit, low limit, difference high limit, or difference low limit.
On/Off
To use an alarm level (1 to 4), set this to On.
Type
Set the alarm type.
For details, see page 1-35 in section 1.2.2, "Setting Alarms".
Alarms of channels set to difference calculation are set in the position shown in the figure
below.
H, L, T, t
Input value
—
Measured value on the reference channel
Value
Set the alarm value for the specified alarm type.
For details, see page 1-35 in section 1.2.2, "Setting Alarms".
Hysteresis
Set this to establish an offset between the value used to activate and release alarms.
Selectable Range or Options
Pulse input channel
Pulse input channel
Selectable Range or Options
Off, On
H: High limit, L: Low limit, R: High limit on rate-
of-change, r: Low limit on rate-of-change, T:
Delay high limit, t: Delay low limit, h:Difference
2
high limit, l: Difference low limit
Within the setting range
Numeric value
When Calculation is set to Off or Delta: 0 to
5% of range setting
When math is set to Linear scaling: 0 to
100000
Off, On
Off, Relay, Internal switch
DO channel or internal switch number
R, r, h, l
Measured value
Default Value
—
—
Default Value
Off
Off
2
0
5
On
Off
—
1-65
1
2
3
4
5
App
Index