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Reference Manual
IP2030/RM, Rev AA
Section 4: Getting started
June 2014
Section 4: Getting started
4.5.6 Optional change: transmitter input channel settings
(advanced users)
Sections 4.5.6 to 4.5.9 are for advanced users. They explain in-depth what transmitter inputs
are supported on the control unit, and how to program (configure) the operation of those
transmitter inputs to result in a control unit Primary / Process Value (PV).
The resulting control unit PV is indicated on the factory-default configured display.
For most users, the App Wizard will set-up the majority of applications with no need of
direct changes to input channel parameters.
Transmitter input channels on the Mobrey MCU901 and MCU90F
The MCU901 and MCU90F control units support the connection of a single 4–20 mA or HART
transmitter. There is one transmitter input channel and it is referred to as Input Channel 1.
For a 4–20 mA transmitter:
See “Programming Input Channel 1 for a 4–20 mA input (advanced users)” on page 44.
For a HART transmitter:
See “Programming Channel 1 for a HART input (advanced users)” on page 48.
Transmitter input channels on the Mobrey MCU902
The MCU902 control unit supports the connection of two HART transmitters, but not two 4–20
mA transmitters. The input channels and are referred to as Input Channel 1 and Input Channel
2.
For two HART transmitters:
See “Programming Channel 1 for a HART input (advanced users)” on page 48.
See “Programming Channel 2 for a HART input (MCU902 only) (advanced users)” on
page 50
.
Sum, difference, or product calculations using input channels 1 and 2
Parameter P150 selects how final values from transmitter input channels 1 (D851) and 2 (D852)
are processed together – sum, difference, or product calculation – before being output to
parameters D800, D801, D802, or D803 ('Answers').
The factory default programming (configuration) for P150 is to allow values from D851 to go
straight to D800.
For a graphical overview, see Figure 4-17 and Figure 4-18 on page 47.