Siemens Milltronics BW500, Operating Instructions Manual

Page: 120 / 220

PID Control
9.5 Programming
BW500 and BW500/L
118
Operating Instructions, 12/2016, A5E33482052-AD
Note
For the mA input:
•
mA input 1 is an external signal normally reserved for controller 1. The signal is input at
terminals 5 and 6 on the mA I/O board.
• mA input 2 is an external signal normally reserved for controller 2. The signal is input at
terminals 7 and 8 on the mA I/O board.
P250-01 mA Input Range E
Select 1- 0 to 20, 2-4 to 20 2
Select the appropriate range for the mA input signal.
P255-01 mA Input Function E
Select: 0, 1-PID SP, 2-PID PV 0
Assign either 1: PID setpoint, or 2: process variable as the function of the mA input.
P401-01 PID Update Time E
Readings between PID Updates 1
Enter the value, e.g. nominal value of 1.
P402 Process Variable Source E
1- Rate, 2-Load, 3-mA In
Select the source. Rate and load are internal values.
P405-01 Proportional Term E
Enter 0.40
Enter the value for the proportional term, for example: nominal value of 0.4.
P406-01 Integral Term E
Select 1- 0 to 20, 2-4 to 20 0.2
Enter the value for the integral term, for example: nominal value of 0.2.
P407-01 Derivative Term E
Enter 0.05
Enter the value for the derivative term, for example: nominal value of 0.05.