Loop Attributes - Metasys - LIT-12011964 - Software Application - System Configuration Tool - 16.0

SCT: System Configuration Tool Help

Brand
Metasys
Product name
System Configuration Tool
Document type
User Guide
Document number
LIT-12011964
Version
16.0
Revision date
2023-10-02
Language
English

This object contains attributes common to many Metasys system objects. These common attributes are described in the Common Object Attributes section. This section includes attributes of the Focus/Configuration tab, the Diagnostics tab (if applicable), and any other tab specific only to this object. See the Object and Feature Tabs section for information on the attributes that appear on the other tabs of this object (for example, the Hardware and Options tab appear on point objects).

Table 1. Loop Attributes
Name / View Group

Attribute ID Writable (W) Configurable (C)

Attribute Description
Intrinsic Alarming Defined -- BACnet

569 C W

Enables the BACnet Intrinsic Alarming feature in the object and the definition of related attributes. For detailed information, see BACnet Intrinsic Alarming.

Manipulated Variable Reference -- Reference

4682 C

Defines the field point mapper that represents the destination of the output of the control loop.
Controlled Variable Reference -- Reference

4683 C

Defines the field point mapper that represents the source of the input to the control loop.
Setpoint Variable Reference -- Reference

4690 C

Defines the field point mapper that represents the setpoint for the control loop.
Proportional Constant Reference -- Reference

4684 C

Provides the object reference for the Proportional Const attribute. The Loop object reads and signs up for changes in the Present Value attribute of the object referenced by the Proportional Constant Reference. The value received is stored as the Proportional Const.
Integral Constant Reference -- Reference

4685 C

Provides the object reference for the Integral Constant attribute. The Loop object reads and signs up for changes in the Present Value attribute of the object referenced by the Integral Constant Reference. The value received is stored as the Integral Constant.

Derivative Constant Reference -- Reference

4686 C

Provides the object reference for the Derivative Constant attribute. The Loop object reads and signs up for changes in the Present Value attribute of the object referenced by the Derivative Constant Reference. The value received is stored as the Derivative Constant.

Bias Reference -- Reference

4687 C

Provides the object reference for the Bias attribute. The Loop object reads and signs up for changes in the Present

Value attribute of the object referenced by the Bias Reference. The value received is stored as the Bias.

Maximum Output Reference -- Reference

4688 C

Provides the object reference for the Max Output attribute. The Loop object reads and signs up for changes in the Present Value attribute of the object referenced by the Maximum Output Reference. The value received is stored as the Max Output.

Minimum Output Reference -- Reference

4689 C

Provides the object reference for the Min Output attribute. The Loop object reads and signs up for changes in the Present Value attribute of the object referenced by the Minimum Output Reference. The value received is stored as the Min Output.

JCI Out of Service Reference -- Reference

12201 C W

Provides the object reference for the JCI Out of Service attribute. The Loop object reads and signs up for changes in the Present Value attribute of the object referenced by the JCI Out of Service Reference. The reference must be a BI, BO, or BV object. When the state of the JCI Out of Service Reference is True, the PID loop algorithm is placed out of service.

JCI Out of Service Value Reference -- Reference

12202 C W

Provides the object reference for the JCI Out of Service Value Reference attribute. The Loop object reads and signs up for changes in the Present Value attribute of the object referenced by the JCI Out of Service Value Reference. The reference must be an AI, AO, or AV object. When the Loop object is out of service, its Present Value assumes the value of this referenced object.

Manual Tuning -- True or False

3408 C

Controls whether the gain values of the PID Loop object can be changed. These values include Proportional Constant, Derivative Constant, Integral Constant, Bias, Maximum Output, and Minimum Output. When the value of this attribute is False, these referenced values cannot be changed.