Teledyne Deltaflow DF180, Operation And Maintenance Manual, Page: 25 / 42

January, 2018
Page 25
fully configured the parameter can be displayed on the main Data screen, configured as an analog or
Modbus output, or used to generate a value alarm. Once the input is configured, the Data: Modbus Map
screen will display the address of the user defined parameter, see section 4.1.4.
4.3.2.2 Configuration: Inputs: Modbus
This screen enables the user to configure floating Modbus inputs to the controller that can then be
displayed on the main Data screen or configured as analog outputs. Modbus digital inputs can also be
configured. If a Modbus Unit On (meaning boiler on, power generating, flame on, etc.) is to be utilized,
Bit 0 of a status word sent to address 490 must be used. Once the Modbus input is configured, the Data:
Modbus Map screen will display the address of the user defined parameter, see section 4.1.4.
4.3.2.3 Configuration: Inputs: Digital
If a Unit On dry contact closure digital input is to be utilized, Digital input 8 must be used. Once
configured, this signal can then be displayed on the main Data screen, or passed through via Modbus
(see Modbus Map screen for address) for the data acquisition system to use.
4.3.2.4 Configuration: Inputs: Temperature
This screen is used to configure the instrument panel ambient temperature parameter. Engineering
units, and Hi/Lo value alarms can be specified here.
4.3.3 Configuration: Outputs
This section allows the users to configure analog output full scale, engineering units, alarms, precision,
etc. as well as some specific aspects of computed analog outputs.
4.3.3.1 Configuration: Outputs: Computed
4.3.3.1.1 Configuration: Outputs: Computed: Raw Velocity
Raw velocity is uncorrected. It is the raw calculated velocity based on the measured parameters and the
stack composition entered in the
Configuration: General screen
.
4.3.3.1.2 Configuration: Outputs: Computed: Velocity
Velocity is corrected to match up with reference method results. This is done by plotting DeltaFlow
velocity data (x-axis) against stack test results (y-axis) at one or more load conditions using a program