Monitoring and Operating the Controller
IN 2
IN 1
Ratio Bias
Ratio Bias
RSP
Source
PV
Source
PV
Remote SP
SP
Source
Local SP
SP
CONTROL ALGORITHM
SP CSP
2SP
OUTPUT
To Final
Control
Element XXXX
Figure 4-2 Functional Overview Block Diagram of the UDC2500 Controller
96 | UDC2500 Universal Digital Controller Product Manual | 4/07 |