Object Naming and Signal Preferences - Johnson Controls - Metasys - LIT-12011147 - Software Application - Controller Configuration Tool - 15.0

Controller Tool Help

Brand
Johnson Controls
Metasys
Product name
Controller Configuration Tool
Document type
User Guide
Document number
LIT-12011147
Version
15.0
Revision date
2022-11-18
Language
English

Object naming and signal preferences determine the naming conventions to use when adding input and output objects to your system (through the System Selection process or when you manually add inputs and outputs after System Selection). The names and signals you define in the object naming preferences are used when adding inputs and outputs during the System Selection process, as well as when adding them manually in the Control View.

An object name consists of a defined Object Name Prefix and a defined Object Name Suffix. The object name is created by combining them. For example, the Object Name Prefix BLDG added to the Object Name Suffix of SP results in an object name of BLDG-SP. Similar functionality is available to define an expanded identifier for each object.

A signal specifies the physical communications connection for a given input or output. This connection allows the controller to receive input values and send output values.

Use Table 1 to determine the signal to use for point types on your system.

Table 1. Field Controller Point Types and Signals

Point Type

Signals Supported

Universal Input (UI) 1

Resistive

Nickel 1k RTD

Platinum 1k RTD

Silicon A99B

2.25k NTC Type 2 Thermistor

10K NTC Type L Thermistor

VAV Velocity Pressure

0-10 VDC

4-20 mA 2

Dry Contact Maintained1

Binary Input (BI)

Dry Contact Maintained

Dry Contact Pulsed

Analog Output (AO)

0-10 VDC

4-20 mA

Binary Output (BO)

24 VAC Incremental 3

24 VAC Maintained

24 VAC Pulse

24 VAC Start Stop 4

Configurable Output (CO)

0-10 VDC

24 VAC Incremental3

24 VAC Maintained

24 VAC Pulse

24 VAC Start Stop4

Universal Output (UO)

0-10 VDC

4-20 mA

24 VAC Incremental3

24 VAC Maintained

24 VAC Pulse

24 VAC Start Stop4

Relay Output (RO) 5

24 VAC Incremental3

24 VAC Maintained

24 VAC Pulse

24 VAC Start Stop4

24 VAC-240 VAC Incremental3

24 VAC-240 VAC Maintained

24 VAC-240 VAC Pulse

24 VAC-240 VAC Start Stop4

Integrated Velocity Pressure Sensor

Integrated Velocity Pressure on VAV Box Controllers

Note: Velocity Application types use -VP as the named suffix (such as SA-VP). The 1615 and 1630 Series VAV Box Controllers use the Integrated Digital Velocity Pressure signal type. The signal type for the earlier 1610 and 1620 versions of the VAV Box Controllers was Integrated Velocity Pressure.

Integrated Actuator

Integrated actuator on VAV Box Controllers

Sensor/Actuator Bus (SAB) Interfaces

The SAB signal type is used to provide the point. Examples of this include Network Sensor (Network Duct Sensor or Network Zone Sensor) and Network VSD.

Wireless Ethernet Interfaces

A wireless Ethernet signal is used to indicate that a wireless Many to One sensor provides the data for this input. An appropriate value object (AV, BV, MV) is created to which the Supervisory Controller passes the sensor data.

1 The Universal Input (UI) is scanned once per second. There may be a delay of up to one second in reading a contact status change.
2 The UI on VAV Box Controllers does not support the 4-20 mA signal.
3 Incremental outputs use two binary hardware slots for opening and closing an actuator.
4 Start stop outputs use two binary hardware slots for starting and stopping a device.
5 You can use Relay Outputs to drive incremental/floating 3-wire actuators; however, we recommend using triac outputs instead of Relay Outputs for the following control loop types: VAV Flow Control, Airflow, Airflow%, Airflow Diff, Bldg Static, and Duct Static.