Maths Input Assignment - ABB COMMANDER 1900 Series User Manual

5.3 Maths Input Assignment (for Controller versions refer to Programming Guide)
Information.
• To display or record a maths function – it must be assigned to a process variable or remote set point.
• If the maths result is to be assigned to a process variable or remote set point – it is necessary to set up fault
detection levels, broken sensor actions and an engineering range (high/low) in the Set Up Input Page, BASIC
CONFIGURATION LEVEL. The engineering range is used in totalizer calculations and is used to calculate the fault
detect level.
• If any input to a maths block fails – the assigned maths result fails.
• If process variables or remote set points – are assigned to a maths block result, only the following frames are
displayed in the
Set Up Input Page
Engineering High Range
Engineering Low Range
Broken Sensor Protection Drive
Fault Detection Level Percentage.
The maths result is assigned to a process variable or remote set point in the
. This page is always displayed on controller versions and is only displayed on recorder version when the maths option is
LEVEL
fitted. For Recorder versions refer to
INPUt
ASSIGN
PV–1
IP–1
Single Pen
Instrument
2, 3 and 4 Pen
Instrument
2 Pen
PV–2
Inst.
3 and 4 Pen Instrument
3 Pen
Inst. PV–3
4 Pen Instrument
PV–4
Single
Controller
Instrument
UPdAtE
ACtIVE
UPdAtE
dONE
INPUt
ASSIGN
,
BASIC CONFIGURATION LEVEL
Input Assign Page
Page Header – Input Assign
Note. Entry and access to and from this page can only be achieved from the page header.
IP–1 bLK–1
IP–2 bLK–2
IP–3 bLK–3
IP–4 bLK–4
IP–5
IP–6
Process Variable 2
Select analog input or maths block result for Process Variable 2 – see
description of inputs and maths blocks.
Process Variable 3
Select analog input or maths block result for Process Variable 3 – see
description of inputs and maths blocks.
Process Variable 4
Select analog input or maths block result for Process Variable 4 – see
description of inputs and maths blocks.
Update Active/Done
The ACtIVE frame is displayed momentarily as any changes are stored in the non-volatile
dONE
memory. is displayed on completion.
Return to
Input Assign
5 ADVANCED CONFIGURATION LEVEL
:
Input Assignment Page
below and for Controller versions refer to the
Process Variable 1
Select analog input or maths block result for Process Variable 1.
IP-1 IP-6
to
bLK-1 bLK-4
to
frame.
,
ADVANCED CONFIGURATION
Programming Guide
– analog input 1 to 6 (if available)
– maths block 1 to 4 (if available)
Process Variable 1
Process Variable 1
Process Variable 1
• Maths
.
for
for
for
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