Central Plant Interconnection Modules - Johnson Controls - Metasys - LIT-12011147 - Software Application - Controller Configuration Tool - 16.0

Controller Tool Help

Brand
Johnson Controls
Metasys
Product name
Controller Configuration Tool
Document type
User Guide
Document number
LIT-12011147
Version
16.0
Revision date
2023-10-02
Language
English

Central Plant Interconnection Network Input modules are directly connected to Output Control or Network Output modules in Central Cooling with Optimization Applications, unless otherwise indicated. The Central Plant Interconnection modules provide connection between the controller and the associated pump, tower, or other controlled device. For some of these modules, this connection occurs when the application is split across multiple controllers.

The following table describes these modules and lists the applications in which they are used.

Table 1. Central Plant Interconnection Network Input Modules

Name

Description

Applications

Building Load Dest

Building Load Dest - Receives input from the Building Load Source Network Output located on the Chiller controller, which indicates the cooling load of the building.

Central Cooling with Optimization Applications

Chiller Max Flow Dest

Chiller Max Flow Dest - Receives input from the Chiller Max Flow Source Network Output located on the Chiller controller, which indicates the maximum flow allowed for the chilled water pumps.

Central Cooling with Optimization Applications

Chiller Plant Capacity Dest

Chiller Plant Capacity Dest - Receives input from the Chiller Plant Capacity Source Network Output located on the tower controller to indicate the cooling capacity of the active chillers.

Central Cooling with Optimization Applications

Chiller Plant Power Dest

Chiller Plant Power Dest - Receives input from the Chiller Plant Power Source Network Output located on the tower controller, which indicates the rated power of active chillers.

Central Cooling with Optimization Applications

CHLR CW PMP COUNT DEST

Provides chiller selector indication that cooling tower operation is required. This input exists in the controller that contains the heat exchanger subsystem.

Central Cooling with Optimization Applications

Chlr Max CHW Flow Dest

Chiller Max CHW Flow Dest - Indicates the chiller selector required maximum primary chilled water flow.

Central Cooling with Optimization Applications

Chlr Min CHW Flow Dest

Chiller Min CHW Flow Dest - Indicates the chiller selector required minimum primary chilled water flow.

Central Cooling with Optimization Applications

Chlr Min CW Flow Dest

Chiller Min CW Flow Dest - Indicates the chiller selector required minimum condenser water flow. This input exists in the controller that contains the heat exchanger subsystem.

Central Cooling with Optimization Applications

Chlr Need Pmps Dest

Provides chiller selector indication that pump startup is required. This input exists in the controllers that contain the heat exchanger subsystem.

Central Cooling with Optimization Applications

Chlr Req CHW Flow Dest

Indicates the required chilled water flow from the chiller selector. This input exists in the controller that contains the heat exchanger subsystem.

Central Cooling with Optimization Applications

Chlr Req CW Flow Dest

Indicates the required condenser water flow from the chiller selector. This input exists in the controller that contains the heat exchanger subsystem.

Central Cooling with Optimization Applications

Chlr Req Twr Flow Dest

Indicates the required cooling tower water flow from the chiller selector. This input exists in the controller that contains the heat exchanger subsystem.

Central Cooling with Optimization Applications

Chlr Sys-Enable Dest

Functions as system enable for the chiller subsystem. This input exists in the controller that contains the chiller subsystem.

Central Cooling with Optimization Applications

Chlr X Runtime Reset

(Where X Is 1-8)

Chiller X Runtime Reset - Provides input to Chiller X Totalization Output Control module to reset the runtime total for the associated chiller.

Central Cooling with Optimization Applications

Chlr X Start Count Reset

(Where X Is 1-8)

Chiller X Start Count Reset - Provides input to Chiller X Start Count Output Control module to reset the total number of starts for the associated chiller.

Central Cooling with Optimization Applications

CHW Current Cap Dest

CHW Current Cap Dest - Receives input from the CHW Current Cap Source Network Output located on the CHW Pump controller, which indicates the current pumping capacity of the active chilled water pumps.

Central Cooling with Optimization Applications

CHW PUMPX-ENABLE DEST

(Where X Is 1-8)

CHW Pump X Enable Dest - Receives input from the CHWPX-ENABLE SRC Network Output located on the Chiller controller, which indicates that the associated pump is enabled.

Central Cooling with Optimization Applications

CHWFLOW-AVAIL

(CHW Flow Available Dest)

CHWFLOW-AVAIL (CHW Flow Available Dest) - Receives input from the CHWFLOW-AVAIL (CHW Flow Available Source) Network Output located on the Chiller controller, which indicates the available pumping capacity of the chilled water pumps.

Central Cooling with Optimization Applications

CHWFLOW-SP

(CHW Flow Setpt Dest)

CHWFLOW-SP (CHW Flow Setpt Dest) - Receives input from the CHWFLOW-SP (CHW Flow Setpt Source) Network Output located on the Chiller controller, which indicates the chilled water pumping capacity required by the chillers.

Central Cooling with Optimization Applications

CHWP X Runtime Reset

(Where X Is 1-8)

CHWP X Runtime Reset - Provides input to CHW Pump X Totalization Output Control module to reset the runtime total for the associated pump.

Central Cooling with Optimization Applications

CHWP X Start Count Reset

(Where X Is 1-8)

CHWP X Start Count Reset - Provides input to CHW Pump X Start Count Output Control module to reset the total number of starts for the associated pump.

Central Cooling with Optimization Applications

CHWPX-CMD

(CHWP X Cmd Dest)

(Where X Is 1-8)

CHWPX-CMD (CHWP X Cmd Dest) - Receives input from the CHWPX-CMD (CHWP X Cmd Source) Network Output located on the Chiller controller, which indicates the associated pump’s command.

Central Cooling with Optimization Applications

CHWS Temperature

Chilled Water Supply Temperature CHWS-T - Indicates temperature of chilled water supply.

Central Cooling with Optimization Applications

CT X Start Count Reset

(Where X Is 1-8)

CT X Start Count Reset - Provides input to Cooling Tower X Start Count Output Control module to reset the total number of starts for the associated cooling tower.

Central Cooling with Optimization Applications

CW Current Cap Dest

CW Current Cap Dest - Receives input from the CW Current Cap Source Network Output located on the CW Pump controller, which indicates the current pumping capacity of the active condenser pumps.

Central Cooling with Optimization Applications

CW Pump Count Dest

CW Pump Count Dest - Receives input from the CW Pump Count SourceNetwork Outputlocated on the Chiller controller, which indicates the number of active condenser water pumps.

Central Cooling with Optimization Applications

CW PUMPX-ENABLE DEST (Where X Is 1-8)

CW Pump X Enable Dest - Receives input from the CWPX-ENABLE SRC Network Output located on the Chiller controller, which indicates that the associated pump is enabled.

Central Cooling with Optimization Applications

CWFLOW-AVAIL (CW Flow Available Dest)

CWFLOW-AVAIL (CW Flow Available Dest) - Receives input from the CWFLOW-AVAIL (CW Flow Available Source) Network Output located on the Chiller controller, which indicates the available pumping capacity of the condenser water pumps.

Central Cooling with Optimization Applications

CWFLOW-SP (CW Flow Setpt Dest)

CWFLOW-SP (CW Flow Setpt Dest) - Receives input from the CWFLOW-SP (CW Flow Setpt Source) Network Output located on the Chiller controller, which indicates the condenser water pumping capacity required by the chillers.

Central Cooling with Optimization Applications

CWP X Runtime Reset

(Where X Is 1-8)

CWP X Runtime Reset - Provides input to CW Pump X Totalization Output Control module to reset the runtime total for the associated pump.

Central Cooling with Optimization Applications

CWP X Start Count Reset

(Where X Is 1-8)

CWP X Start Count Reset - Provides input to CW Pump X Start Count Output Control module to reset the total number of starts for the associated pump.

Central Cooling with Optimization Applications

CWPX-CMD(CWP X Cmd Dest)

(Where X Is 1-8)

CWPX-CMD (CWP X Cmd Dest) - Receives input from the CWPX-CMD (CWP X Cmd Source) Network Output located on the Chiller controller, which indicates the associated pump’s command.

Central Cooling with Optimization Applications

CWS-T

Condenser Water Supply Temp - Input to Hx indicating condenser water supply temperature.

Central Cooling with Optimization Applications

CWT-CHLRSTPT

Condenser Water Chiller Start Setpoint -the condenser water temp required before starting the chiller.

Central Cooling with Optimization Applications

ECON CH-SP

Econ Chiller Setpoint - Input to Hx system that indicates chilled water supply setpoint when in Hx control.

Central Cooling with Optimization Applications

ECON EN STPT

Econ Enable Setpoint - Input to Hx system that indicates maximum outdoor air conditions for which Hx cooling is available.

Central Cooling with Optimization Applications

ECON STATE DEST

Economizer State Dest - Indicates the waterside economizer sequencer state.

Central Cooling with Optimization Applications

FREE CLG ALLOWED

Free Cooling Allowed - Input to Hx system that indicates if Hx cooling is allowed.

Central Cooling with Optimization Applications

Hx##-LO

(Where ## is 1-4)

Hx## Lockout Switch -Input to the Hx## Alarms module that removes the Heat Exchanger from rotation.

Central Cooling with Optimization Applications

Hx ## Runtime Reset

(Where ## is 1-4)

Hx X Runtime Reset - Input to Hx ## Totalization Output Control module to reset the runtime total for the associated Hx.

Central Cooling with Optimization Applications

Hx CHW Pump ## Enable Dest

(Where X is 1-4)

Indicates that primary chilled water pump ## is enabled (where ## means 1, 2, 3, or 4). This input exists in the primary chilled water pump subsystem.

Central Cooling with Optimization Applications

Hx CHWP##-CMD

(Where ## is 1-4)

Indicates that dedicated primary chilled water pump ## is required to run (where ## means 1,2, 3, or 4). The input exists in the controller that contains the primary chilled water pump subsystem.

Central Cooling with Optimization Applications

HX CW DT Setpoint

Hx Condenser Water Delta Temp Setpoint - Input to condenser water system that indicates the delta temp setpoint when in Hx control.

Central Cooling with Optimization Applications

Hx CW Pump ## Enable Dest

(Where X is 1-4)

Indicates that condenser water pump ## is enabled (where ## means 1, 2, 3, or 4). This input exists in the heat exchanger subsystem.

Central Cooling with Optimization Applications

Hx CWP##-CMD

(Where ## is 1-4)

Indicates that condenser water pump ## is required to run (where ## means 1, 2, 3, or 4). The input exists in the controller that contains the condenser water pump subsystem.

Central Cooling with Optimization Applications

Hx Min CW Flow Dest

Heat Exchanger Min CW Flow Dest - Indicates heat exchanger minimum condenser water flow.

Central Cooling with Optimization Applications

HX-ROT

Hx Rotate Now - Input to Hx Selector that indicates selector should rotate exchangers now if possible.

Central Cooling with Optimization Applications

HXSELECTOR-PV Dest

Hx Selector Process Variable Dest - Input to Hx system from chiller system that indicates current process variable for the Hx selector.

Central Cooling with Optimization Applications

Min CHW Flow Setpoint Dest

Min CHW Flow Setpoint Dest - Receives input from the Min CHW Flow Setpoint Source Network Output located on the Chiller controller, which indicates the minimum flow setpoint of the chilled water through the active chillers. This modules also indicates the minimum pumping capacity required by the active chillers.

Central Cooling with Optimization Applications

Min CW Flow Dest

Min CW Flow Dest - Receives input from the Min CW Flow Source Network Output located on the Chiller controller, which indicates the minimum condenser water pump capacity required by the active chillers.

Central Cooling with Optimization Applications

OA ECON LO SP

OA Econ Lockout Setpoint - Input to Hx system that indicates minimum outdoor air temperature for which Hx cooling is available.

Central Cooling with Optimization Applications

PCHWS-T

Primary Chilled Water Supply Temp - Input to Hx system indicating Primary Chilled Water Supply Temp.

Central Cooling with Optimization Applications

Pump Startup Required Dest

Pump Startup Required Dest - Receives input from the Pump Startup Required Source Network Output located on the Chiller controller, which indicates the chilled water plant requires pumping and enables the pumping subsystems.

Central Cooling with Optimization Applications

SCHWP X Runtime Reset

(Where X Is 1-8)

SCHWP X Runtime Reset - Provides input to Secondary Pump X Totalization Output Control module to reset the runtime total for the associated pump.

Central Cooling with Optimization Applications

SCHWP X Start Count Reset

(Where X Is 1-8)

SCHWP X Start Count Reset - Provides input to Secondary Pump X Start Count Output Control module to reset the total number of starts for the associated pump.

Central Cooling with Optimization Applications

Tower Current Cap Dest

Tower Current Cap Dest - Receives input from the Tower Current Cap Source Network Output located on the cooling tower pump controller, which indicates the current capacity of the active cooling towers.

Central Cooling with Optimization Applications

Tower Fan X Runtime Reset

(Where X Is 1-8)

Tower Fan X Runtime Reset - Provides input to Cooling Tower X Totalization Output Control module to reset the runtime total for the associated cooling tower.

Central Cooling with Optimization Applications

Tower Flow Available Dest

Tower Flow Available Dest - Provides input to the Tower Flow Available Source Network Output located on the chiller controller to indicate the available cooling tower capacity.

Central Cooling with Optimization Applications

Tower Required Flow Dest

Tower Required Flow Dest - Provides input to the Tower Required Flow Source Network Output located on the chiller controller to indicate the cooling tower capacity required by the active chillers.

Central Cooling with Optimization Applications

Twr IsoVlv Ramp Time

Twr IsoVlv Ramp Time - Indicates the ramp time of the device, which delays turning the device on or off.

Central Cooling with Optimization Applications

WSE CHW Current Cap Dest

Waterside Economizer CHW Current Cap - Indicates the current capacity of the headered primary chilled water pumps.

Central Cooling with Optimization Applications

WSE CW Current Cap Dest

Waterside Economizer CW Current Cap - Indicates the current capacity of the headered condenser water pumps.

Central Cooling with Optimization Applications

Table 2. Central Plant Optimization 30 Network Input Modules
Name Definition
CPO-30 Ready When CPO-30 Ready is true, the application follows the CPO-30 integration point values. When CPO-30 Ready is false, the application follows its original sequences.
CPO-30 CHILLERMODE When CPO-30 CHILLERMODE is true, the application enables the mechanical cooling system.
CPO-30 RUNCTFAN When CPO-30 RUNCTFAN is true, the application turns on the fans in each running cooling tower and runs the fans at the speed indicated by the CPO-30 CTFRPM point.
CPO-30 CHDMD Sets the chiller %RLA (Running Load Amperage) limit, for each running chiller.
CPO-30 LOWLOAD At very low loads, the operation of the lead (only operating) chiller is disabled to provide chilled water more efficiently. When CPO-30 LOWLOAD is true, the application stops the operating chiller, while leaving isolation valves open because the pumps continue to run. The chiller is shut down, the running condenser water pumps and cooling tower fans are stopped. The chill water pumps remain running. When CPO-30 LOWLOAD is false, the lead condenser pump is enabled. Once the condenser water pump is proved to be running, the application enables the lead chiller. At this point, the system returns to normal operation.
CPO-30 CHLRTR The CPO-30 CHLRTR signal is an analog 0-N (N = number of chillers at this plant) signal sent to the application. The signal's value increases (or decreases) when the CPO-30 system wants the application to add or subtract a lag chiller. When CPO-30 CHLRTR is increased from 0 to 1, the application initiates the start of the first chiller stage corresponding with the first row of the chiller sequencing table. When CPO-30 CHLRTR is 1 and increased to 2 (or more), the application steps through each chiller stage as defined in the chiller sequence table.
CPO-30 CDWPRPM Pump speeds are controlled by the application according to the CPO-30 system supplied value. When two or more pumps are operating, all condenser water pumps operate at identical speeds according to the CPO-30 CDWPRPM point value.
CPO-30 CDWPTR Indicates the number of condenser water pumps to run. This signal informs the application when to add or remove a pump.
CPO-30 CHWPTR Indicates the number of chill water pumps to run. This signal informs the application when to add or remove a pump.
CPO-30 CHWPRPM Pump speeds are controlled by the application according to the CPO-30 system supplied value. When two or more pumps are operating, all chill water pumps operate at identical speeds according to the CPO-30 CHWPRPM point value.
CPO-30 SCHWPTR Indicates the number of secondary water pumps to run. This signal informs the application when to add or remove a pump.
CPO-30 SCHWPRPM Pump speeds are controlled by the application according to the CPO-30 system supplied value. When two or more pumps are operating, all secondary water pumps operate at identical speeds according to the CPO-30 SCHWPRPM point value.
CPO-30 CTTR Indicates the number of cooling towers to run. If CPO-30 determines it is more efficient to run two or more cooling towers with the operating chillers, it increases the CPO-30 CTTR signal. This signal informs the application when to add or remove a tower. This may happen concurrently with a CPO-30 CHLRTR signal. This point only indicates when to allow condenser water flow into the tower; the cooling tower fans remain off unless CPO-RUNCTFAN is on.
CPO-30 CDWBPV Indicates the percent at which the condenser water bypass valve is opened to control the condenser water temperature.
CPO-30 CTFRPM Cooling tower fan speeds are controlled by the application according to the CPO-30 system supplied value CPO-30 CTFRPM when CPO-30 RUNCTFAN is active. When two or more tower fans are operating, all tower fans operate at identical speeds according to the CPO-30 CTFRPM point value.
CPO-30 HXTR The CPO-30 HXTR signal is an analog 0-N (N = number of heat exchangers at this plant) signal sent to the application. The signal's value increases (or decreases) when the CPO-30 system wants the application to add or subtract a heat exchanger. When CPO-30 HXTR is increased from 0 to 1, the application initiates the start of the first heat exchanger stage corresponding with the first row of the sequencing table. When CPO-30 HXTR is 1 and increased to 2 (or more), the application steps through each stage as defined in the sequence table.