Selection Of Output Value Format - ABB 615 series Technical Manual

1MAC059074-MB A
3.13.2.2
615 series ANSI
Technical Manual
The default value for all inputs is "Not in use", which means that the channel is not
sampled at all, and the output value quality is set accordingly.
Table 52: Limits for the RTD/mA inputs
Input mode Description
Not in use Default selection. Used when the corresponding input is not used.
0...20 mA Selection for analog DC milliampere current inputs in the input range of 0...20 mA.
Resistance Selection for RTD inputs in the input range of 0...2000 Ω.
Pt100 Selection for RTD inputs, when temperature sensor is used. All the selectable sensor
Pt250 types have their resistance vs. temperature characteristics stored in the module;
Ni100 default measuring range is -40...200°C.
Ni120
Ni250
Cu10

Selection of output value format

Each input has independent Value unit settings that are used to select the unit for the
channel output. The default value for the Value unit setting is "Dimensionless". Input
minimum and Input maximum, and Value maximum and Value minimum settings have to
be adjusted according to the input channel. The default values for these settings are set to
their maximum and minimum setting values.
When the channel is used for temperature sensor type, set the Value unit setting to
"Degrees celsius". When Value unit is set to "Degrees celsius", the linear scaling is not
possible, but the default range (-40...200 °C) can be set smaller with the Value maximum
and Value minimum settings.
When the channel is used for DC milliampere signal and the application requires a linear
scaling of the input range, the Value unit setting value has to be "Dimensionless", where
the input range can be linearly scaled with settings Input minimum and Input maximum to
Value minimum and Value maximum. When milliampere is used as an output unit, Value
unit has to be "Ampere". When Value unit is set to "Ampere", the linear scaling is not
possible, but the default range (0...20 mA) can be set smaller with the Value maximum and
Value minimum settings.
When the channel is used for resistance type signals and the application requires a linear
scaling of the input range, the Value unit setting value has to be "Dimensionless", where
the input range can be linearly scaled with the setting Input minimum and Input maximum
to Value minimum and Value maximum. When resistance is used as an output unit, Value
unit has to be "Ohm". When Value unit is set to "Ohm", the linear scaling is not possible,
but the default range (0...2000 Ω) can be set smaller with the Value maximum and Value
minimum settings.
Section 3
Basic functions
115