Alarm
Designate whether or not to display an alarm (change the data color when the value goes outside of the alarm range).
Alarm Action
Select the action when the alarm is active from [Constant] or [Address]. The [Alarm Range] settings will vary, depending on the selected action.
From the [Data Type] tab, if you enable [Scaling Settings], this setting is fixed to [Constant].
Please refer to the following for models that support alarm range addressing for Sampling.
1.5 Supported Features
Alarm Range
In the [Data Type] tab, when you disable [Scaling Settings] you need to set the [Alarm Range].
In the [Data Type] tab, when you enable [Scaling Settings], the [Alarm Range] is same as the [Display Range].
When [Alarm Action] is [Constant]
Set the [Upper Limit] and the [Lower Limit] within the following range.
Bit Length |
Data Type |
Display Sign +/- |
Display Range |
8 bit |
Dec |
Disable |
0 to 255 |
Enable |
-128 to 127 |
||
Hex |
- |
0 to FF |
|
BCD |
- |
0 to 99 |
|
16 bit |
Dec |
Disable |
0 to 65535 |
Enable |
-32768 to 32767 |
||
Hex |
- |
0 to FFFF |
|
BCD |
- |
0 to 9999 |
|
32 bit |
Dec |
Disable |
0 to 4294967295 |
Enable |
-2147483648 to 2147483647 |
||
Hex |
- |
0 to FFFFFFFF |
|
BCD |
- |
0 to 99999999 |
|
Float |
Selected (Fixed) |
-9.9e16 to 9.9e16 |
When [Alarm Action] is [Address]
Specify the address where the [Upper Limit] is stored. The address for the [Lower Limit] increments from the [Upper Limit] address.
When the specified address is 16 bit
When the [Bit Length] is [16 Bit]
When the [Bit Length] is [32 Bit]
When the specified address is 32 bit
When the [Bit Length] is [16 Bit]
When the [Bit Length] is [32 Bit]
If [Bit Length] is [8 Bit], only the last 8 bits are used from the address specified.
Numeral Value Color
Select the numeric value color for when the Alarm is displayed.
Background Color
Select the background color for when the Alarm is displayed.
Blink
Select the blink and blink speed. You can choose different blink settings for the [Numeric Value Color] and [Background Color] in the alarm color.
Depending on your display unit's model and [Color] settings, you may not be able to set Blink (from the [Project] menu, point to [System Settings] and click [Display Unit]). 1.6 Supported Colors
When alarms are set up in the data portion, the alarm range is determined by the value before rounding off. Calculations use values after rounding off. As a result, even if the data and calculation have the same alarm range, the display color may be different.
When [Data Type] is [Float], the alarm range is determined by one fractional digit after the defined number of decimal places. As a result, even if the display value is the same, the display color may be different.
For example, if the display is [10.0] (Digits = 3, Decimal Places = 1), and alarm range is 0 to 10
When actual value is 10.01, displays alarm color
When actual value is 10.001, displays normal color