Diagnosis; Rescaling The Input Value - Endress+Hauser PROline Prosonic Flow 93 Function Manual

PROline Prosonic Flow 93 FOUNDATION Fieldbus


Endress+Hauser
4.8

Diagnosis

Block errors and diagnosis information are displayed in the Analog Input function block
via the BLOCK_ERR parameter, (see Page 170). A description of the block errors
supported is provided on Page 170.
Note!
Further information on trouble-shooting and fault elimination while configuring the
Analog Input function block is provided in the Operating Instructions for PROline
Prosonic Flow 93 FF, BA052D/06/en.
4.9

Rescaling the input value

In the Analog Input function block, the input value or input range can be scaled in
accordance with the automation requirements.
Example:
• The measuring range of the sensor channel 1 is 0...30 m³/h.
• The output range to the automation system should be 0...100%.
The Analog Input function block must be configured as follows:
• Select the input value in the CHANNEL parameter, (see Page 171)
Select: Channel = 2 → Volume flow channel 1
• L_TYPE parameter, (see Page 174)
Select: L_TYPE = Indirect
The "volume flow channel 1" process variable of the Transducer Block
TRANSDUCER_ CH1 (flow channel 1, base index 1200) is rescaled linearly to the
desired OUT_SCALE output range via the XD_SCALE input scaling.
• XD_SCALE parameter group, (see Page 180)
XD_SCALE 0 %
XD_SCALE 100 %
XD_SCALE UNIT
• OUT_SCALE parameter group, (see Page 178)
OUT_SCALE 0 %
OUT_SCALE 100 %
OUT_SCALE UNIT
The result is that with an input value of, for example, 15 m³/h a value of 50% is output
via the OUT parameter.
Transducer
Block
TRANSDUCER_CH1
0...30 m³/h
= 0
= 30
= m³/h
= 0
= 100
= %
Analog Input Function Block
m³/h
XD_SCALE
30
Vol. Flow
Ch 1
15 m³/h
0
0
4 Analog Input function block
%
OUT_SCALE
100
0
100% 0 100
OUT
50%
%
165