Watlow CLS200 - Process Variable Retransmit Example: Data Logging; Figure 5.2 - Linear Scaling of Process Variable for Retransmit

CLS200 Series User’s Guide
Chapter 5: Enhanced Features
100
0%
100%
Maximum
Output
Minimum
Output
Minimum
Input
Maximum
Input
Output Power (%)
Input Process Variable
Figure 5.2 — Linear Scaling of Process Variable for Retransmit
Maximum Output
Enter the output value (0 to 100%) which corresponds to the maximum input.
The output will never go above the this maximum output percentage, regardless of how high the
process variable goes.
ALARM
02 HEAT RETRANS
MAX OUT%? 100%
Selectable values: 0 to 100%.
Process Variable Retransmit Example: Data Logging
The CLS200 controls the temperature of a furnace. The thermocouple in one of the zones is
connected to the controller and is used for closed-loop PID control. An analog recorder data logging
system is also in place, and a recording of the process temperature is required. The recorder input is
a linear 4 to 20mA DC signal representing a process variable range of 0 to 1000°F.