Setting up process variable retransmit, Setting up process variable retransmit 103 – Watlow PPC-2000 User Manual
Page 127
PPC-2000 User’s Guide
Chapter 3: Operating with AnaWin 3
Doc.# 30002-00 Rev 2.3
Watlow Anafaze
103
A channel cannot be used for closed-loop control when it is
configured as a retransmit channel.
Setting up Process Variable Retransmit
On the Channels spreadsheet for the channel that will output
the retransmit signal:
1.
Set the Control Type to PV Retransmit.
2.
Set the PV Source to the same setting as the PV Source pa-
rameter of the channel to be retransmitted or any other
analog input you want to retransmit.
3.
Set the Heat Output Dest to the PPC output on which you
want to retransmit the analog input.
4.
Set the Heat Output Type to a setting appropriate for the heat
output destination you chose in step 3.
5.
Set the Min Set Point to the minimum value of the analog
input that you want to retransmit.
6.
Set the Max Set Point to the maximum value of the analog
input that you want to retransmit.
To retransmit a second analog input on the same retransmit
channel with the same scaling:
1.
Set the Set Point Source to the second analog input to be
retransmitted.
2.
Set the Cool Output Dest to the PPC output on which you
want to retransmit
3.
Set the Cool Output Type to a setting appropriate for the cool
output destination you chose in step 2.
If you do not wish to use the full range of the heat or cool output
type signal, the signal can be scaled:
1.
Set the Heat Scale Lo to a percent of the range of the
selected heat output type. This is the signal level that will
be transmitted when the analog input selected as PV Source
is at the value you entered for Min Set Point.
2.
Set the Heat Scale Hi to a percent of the range of the selected
heat output type. This is the signal level that will be trans-
mitted when the analog input selected as PV Source is at
the value you entered for Max Set Point.
3.
Set the Cool Scale Lo to a percent of the range of the se-
lected cool output type. This is the signal level that will be
transmitted when the analog input selected as Set Point
Source is at a value you entered for Min Set Point.
analog