Process Control Instructions
    The Process Control instructions include these instructions:
Available Instructions
Ladder Diagram
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Function Block and Structured Text
If you want to  | Use this instruction  | 
Provide alarming for any analog signal.  | ALM  | 
Control discrete devices, such as solenoid valves, pumps, and motors, that have only two possible states (e.g., on/off, open/closed, etc.).  | D2SD  | 
Control discrete devices, such as high/low/off feeders that have three possible states (e.g., fast/slow/off, forward/stop/reverse, etc.).  | D3SD  | 
Perform a delay of a single input. You select the amount of deadtime delay.  | DEDT  | 
Convert an input based on a piece-wise linear function.  | FGEN  | 
Provide a phase lead-lag compensation for an input signal.  | LDLG  | 
Regulate an analog output to maintain a process variable at a certain setpoint, using a PID algorithm.  | PIDE  | 
Raise/lower or open/close a device, such as a motor-operated valve, by pulsing open or close contacts.  | POSP  | 
Provide for alternating ramp and soak periods to follow a temperature profile.  | RMPS  | 
Convert an unscaled input value to a floating point value in engineering units.  | SCL  | 
Take the 0-100% output of a PID loop and drive heating and cooling digital output contacts with a periodic pulse.  | SRTP  | 
Provide a time-scaled accumulation of an analog input value, such as a volumetric flow.  | TOT  | 
Control a single process variable by maintaining a single controller output.  | IMC  | 
Control a single process variable by manipulating as many as three different control variables.  | CC  | 
Control two process variables to their setpoints using up to three control variables.  | MMC  | 
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