Allen-Bradley MicroLogix 1200 Reference Manual

Publication 1762-RM001C-EN-P
Process Control Instruction 19-5
Setpoint MAX (MAXS)
If the SPV is read in engineering units, then the MAXS (Setpoint
Maximum) parameter corresponds to the value of the setpoint in
engineering units when the control input is at its maximum value.
Setpoint MIN (MINS)
If the SPV is read in engineering units, then the MINS (Setpoint Minimum)
parameter corresponds to the value of the setpoint in engineering units
when the control input is at its minimum value.
Scaled errors greater than +32767 or less than -32768 cannot be
represented. If the scaled error is greater than +32767, it is represented as
+32767. If the scaled error is less than -32768, it is represented as -32768.
Old Setpoint Value (OSP)
The OSP (Old Setpoint Value) is substituted for the current setpoint, if the
current setpoint goes out of range of the setpoint scaling (limiting)
parameters.
Input
Parameter
Descriptions
Address Data
Format
Range Type User
Program
Access
MAXS - Setpoint
Maximum
PD10:0.MAXS word
(INT)
-32,768 to +32,767 control read/write
Input Parameter
Descriptions
Address Data
Format
Range Type User
Program
Access
MINS - Setpoint
Minimum
PD10:0.MINS word
(INT)
-32,768 to +32,767 control read/write
NOTE
MinS - MaxS scaling allows you to work in engineering
units. The deadband, error, and SPV are also displayed in
engineering units. The process variable, PV, must be
within the range of 0 to 16383. Use of MinS - MaxS does
not minimize PID PV resolution.
Input Parameter
Descriptions
Address Data
Format
Range Type User
Program
Access
OSP - Old
Setpoint Value
PD10:0.OSP word
(INT)
-32,768 to +32,767 status read only

Allen-Bradley MicroLogix 1200 Specifications

General

Brand	Allen-Bradley
Model	MicroLogix 1200
Category	Control Unit
Language	English