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ABB COMMANDER C355 - Template Customization and PC Connection

ABB COMMANDER C355
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124
APPENDIX A CONTROL TEMPLATES
L
LR
I/P1
Manual Output
OP1
Local Ratio
Remote Ratio
Process Variable input
Wild Variable
PV
WV
rAtO
Actual
Ratio
* Template 17 Only
*
Actual – Desired
Ratio
WV x rAtO + bIAS
PV – bIAS
WV
I/P3
I/P2
Profile
Set Point
A8 Ratio Station (Templates 16 and 17)
The Ratio Station provides a set point for a subsequent slave controller. The wild variable is weighted by ratio (
rAtO
) and bias (
bIAS
) values and
is then retransmitted as an analog output value. The ratio value applied to the wild variable can be either a local value set o
n the front panel or a remote
signal on an analog input.
The actual ratio of the process variable to the wild variable is also displayed.

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