Global Library Functions and Function Blocks

This function calculates the average between 1 and 10 values.

Binary-Coded Decimal (BCD) translation of a 4-bit value.

This function block clamps the input process variable to the defined range.

This function block is a deviation alarm indicating the deviation of the process variable away from the set point.

This function block manages the Dual DI Termination Panel autotest sequences. Parameter definitions and additional information are available from the DIPT function block located in the Global Library.

Several process control functions and function blocks may generate error conditions causing ERRSTAT counters to increment.

This function extracts the top 16 bit values of a 32 bit floating-point number.

This function extracts the bottom 16-bit values of a 32-bit floating-point number.

This function selects the highest value between two process variables.

This function block is a process regulator that uses the feedback concept to regulate the process variable according to the difference between its current value and the value of the set point.

This function block manages the Dual DI Termination Panel autotest sequences. Parameter definitions and additional information are available from the ITSTM function block located in the Global Library.

This function block detects line faults for CS300 AI modules. Parameter definitions and additional information are available from the LFLT function block located in the Global Library.

This function selects the lowest value between two process variables.

This function block enables manual set-point tracking.

The function provides the mass flow corrected for the current operating conditions.

This function selects the median value between three process variables.

This function block manages the Dual DO Termination Panel autotest sequences. Parameter definitions and additional information are available from the OTSTM function block located in the Global Library.

This function block packs 16 boolean variables into a 16-bit register. Parameter definitions and additional information are available from the PACK16 function block located in the Global Library.

This function block provides the pressure compensated drum level.

This function block is a process regulator that uses the feedback concept to regulate the process variable according to the difference between its current value and the value of the set point.

This function selects between two REAL analog values.

This function block detects when the absolute rate of change per second of the input process variable, over the specified time interval, exceeds the maximum rate of change.

This function combines the top and bottom 16-bit values of two integers to produce a 32-bit floating point number.

This function block manages the Dual DO Termination Panel autotest sequences. Parameter definitions and additional information are available from the RMET function block located in the Global Library.

This function block linearly scales the input value according to the low input (IPmin), high input (IPmax), low output (OUTmin) and high output (OUTmax) values.

This function block tracks the process variable with the output.

Within a specified range, this function calculates the square root of a REAL value as a percentage.

This function block calculates the average value of the process variable over the specified time period.

This function block unpacks a 16-bit register into 16 boolean variables. Parameter definitions and additional information are available from the UNPACK16 function block located in the Global Library.

This function block provides a simplified interface to the valve test functionality of the T8449

Trusted®

TMR 24 Vdc Valve Monitor module. This module uses the VTEST function block to initiate a valve test and records the results.

For additional information, see http://literature.rockwellautomation.com/idc/groups/literature/documents/rm/icstt-rm248_-en-p.pdf.