MS/TP Points Table - Johnson Controls - LIT-12012523 - Temperature Data Acquisition (TDA) Module

Temperature Data Acquisition (TDA) Module Technical Bulletin

Product name
Temperature Data Acquisition (TDA) Module
Document type
Installation Instructions
Document number
LIT-12012523
Revision date
2021-03-30
Table 1. Points for TE-74

Point Name

Description

TDA Module Point (Type/Instance ID)

Enum

Set/Range

Supply Temp 1 Resistance

(CWS1-R)

The raw resistance measured by input 1 of TDA module.

AI25000

3,000.0 to 55,000.0 ohms

Gain term for Field Calibration of CWS1

(CWS1-GAIN)

Field calibration gain value used to compensate for any error in the input 1 circuitry.

AV25001

1E-16 to 2

Zero Reference for Field Calibration of CWS1

(CWS1-Zero Reference)

Field calibration Zero Reference value used to compensate for any error in the input 1 circuitry.

AV25002

-1000 to 1000ohms

Temp Conversion Coefficient for CWS1

(CWS1-COEFFICIENT A)

The first coefficient of the Steinhart-Hart equation, used to convert the measured resistance on input 1 to equivalent temperature. This value can be found on the calibration certificate for the temperature probe connected to this input.

AV25003

-1 to 1

Temp Conversion Coefficient for CWS1

(CWS1-COEFFICIENT B)

The second coefficient of the Steinhart-Hart equation, used to convert the measured resistance on input 1 to equivalent temperature. This value can be found on the calibration certificate for the temperature probe connected to this input.

AV25004

-1 to 1

Temp Conversion Coefficient for CWS1

(CWS1-COEFFICIENT C)

The third coefficient of the Steinhart-Hart equation, used to convert the measured resistance on input 1 to equivalent temperature. This value can be found on the calibration certificate for the temperature probe connected to this input.

AV25005

-1 to 1

Chilled Water Supply 1 Temperature

(CWS1-T)

Temperature measured by input 1 of TDA module.

AV25006

-10°C to 218°C

CWS1 Calibrated Resistance

(CWS1-R CALIBRATED)

Resistance measured by input 1 of TDA module after Gain Term for Field Calibration of CWS1and Zero Reference for Field calibration of CWS1have been applied to Supply Temp 1 Resistance.

AV25007

3,000.0 to 55,000.0ohms

Return Temp 1 Resistance

(CWR1-R)

The raw resistance measured by input 2 of TDA module.

AI25010

3,000.0 to 55,000.0ohms

Gain term for Field Calibration of CWR1

(CWR1-GAIN)

Field calibration gain value used to compensate for any error in the input 2 circuitry.

AV25011

1E-16 to 2

Zero Reference for Field Calibration of CWR1

(CWR1-Zero Reference)

Field calibration Zero Reference value used to compensate for any error in the input 2 circuitry.

AV25012

-1000 to 1000ohms

Temp Conversion Coefficient for CWR1

(CWR1-COEFFICIENT A)

The first coefficient of the Steinhart-Hart equation, used to convert the measured resistance on input 2 to equivalent temperature. This value can be found on the calibration certificate for the temperature probe connected to this input.

AV25013

-1 to 1

Temp Conversion Coefficient for CWR1

(CWR1-COEFFICIENT B)

The second coefficient of the Steinhart-Hart equation, used to convert the measured resistance on input 2 to equivalent temperature. This value can be found on the calibration certificate for the temperature probe connected to this input.

AV25014

-1 to 1

Temp Conversion Coefficient for CWR1

(CWR1-COEFFICIENT C)

The third coefficient of the Steinhart-Hart equation, used to convert the measured resistance on input 2 to equivalent temperature. This value can be found on the calibration certificate for the temperature probe connected to this input.

AV25015

-1 to 1

Chilled Water Return 1 Temperature

(CWR1-T)

Temperature measured by input 2 of TDA module.

AV25016

-10°C to 218°C

CWR1 Calibrated Resistance

(CWR1-R CALIBRATED)

Resistance measured by input 2 of TDA module after Gain Term for Field Calibration of CWR1and Zero Reference for Field calibration of CWR1have been applied to Return Temp 1 Resistance.

AV25017

3,000.0 to 55,000.0ohms

Supply Temp 2 Resistance

(CWS2-R)

The raw resistance measured by input 3 of TDA module.

AI25020

3,000.0 to 55,000.0ohms

Gain term for Field Calibration of CWS2

(CWS2-GAIN)

Field calibration gain value used to compensate for any error in the input 3 circuitry.

AV25021

1E-16 to 2

Zero Reference for Field Calibration of CWS2

(CWS2-Zero Reference)

Field calibration Zero Reference value used to compensate for any error in the input 3 circuitry.

AV25022

-1000 to 1000ohms

Temp Conversion Coefficient for CWS2

(CWS2-COEFFICIENT A)

The first coefficient of the Steinhart-Hart equation, used to convert the measured resistance on input 3 to equivalent temperature. This value can be found on the calibration certificate for the temperature probe connected to this input.

AV25023

-1 to 1

Temp Conversion Coefficient for CWS2

(CWS2-COEFFICIENT B)

The second coefficient of the Steinhart-Hart equation, used to convert the measured resistance on input 3 to equivalent temperature. This value can be found on the calibration certificate for the temperature probe connected to this input.

AV25024

-1 to 1

Temp Conversion Coefficient for CWS2

(CWS2-COEFFICIENT C)

The third coefficient of the Steinhart-Hart equation, used to convert the measured resistance on input 3 to equivalent temperature. This value can be found on the calibration certificate for the temperature probe connected to this input.

AV25025

-1 to 1

Chilled Water Supply 2 Temperature

(CWS2-T)

Temperature measured by input 3 of TDA module.

AV25026

-10°C to 218°C

CWS2 Calibrated Resistance

(CWS2-R CALIBRATED)

Resistance measured by input 3 of TDA module after Gain Term for Field Calibration of CWS2and Zero Reference for Field calibration of CWS2have been applied to Supply Temp 2 Resistance.

AV25027

3,000.0 to 55,000.0ohms

Return Temp 2 Resistance

(CWR2-R)

The raw resistance measured by input 4 of TDA module.

AI25030

3,000.0 to 55,000.0ohms

Gain term for Field Calibration of CWR2

(CWR2-GAIN)

Field calibration gain value used to compensate for any error in the input 4 circuitry.

AV25031

1E-16 to 2

Zero Reference for Field Calibration of CWR2

(CWR2-Zero Reference)

Field calibration Zero Reference value used to compensate for any error in the input 4 circuitry.

AV25032

-1000 to 1000ohms

Temp Conversion Coefficient for CWR2

(CWR2-COEFFICIENT A)

The first coefficient of the Steinhart-Hart equation, used to convert the measured resistance on input 4 to equivalent temperature. This value can be found on the calibration certificate for the temperature probe connected to this input.

AV25033

-1 to 1

Temp Conversion Coefficient for CWR2

(CWR2-COEFFICIENT B)

The second coefficient of the Steinhart-Hart equation, used to convert the measured resistance on input 4 to equivalent temperature. This value can be found on the calibration certificate for the temperature probe connected to this input.

AV25034

-1 to 1

Temp Conversion Coefficient for CWR1

(CWR2-COEFFICIENT C)

The third coefficient of the Steinhart-Hart equation, used to convert the measured resistance on input 4 to equivalent temperature. This value can be found on the calibration certificate for the temperature probe connected to this input.

AV25035

-1 to 1

Chilled Water Return 2 Temperature

(CWR2-T)

Temperature measured by input 4 of TDA module.

AV25036

-10°C to 218°C

CWR2 Calibrated Resistance

(CWR2-R CALIBRATED)

Resistance measured by input 4 of TDA module after Gain Term for Field Calibration of CWR2and Zero Reference for Field calibration of CWSRhave been applied to Return Temp 2 Resistance.

AV25037

3,000.0 to 55,000.0ohms

Return-Supply Temperature 1 Difference 1

(RETURN SUPPLY1-DIFF)

Difference between temperatures Chilled Water Return 1 Temperatureand Chilled Water Supply 1 Temperature.

AV25040

-40°C to 40°C

Return-Supply Temperature 2 Difference 2

(RETURN SUPPLY2-DIFF)

Difference between temperatures Chilled Water Return 2 Temperatureand Chilled Water Supply 2 Temperature.

AV25041

-40°C to 40°C

Verification Mode Enable 3

(VERIFICATION-MODE-EN)

When enabled, the Input Output Update Interval is overridden, and all points update at a 10 second interval. Intended to be used temporarily when faster data reporting is desired.

BV25050

1 - Disable

2 - Enable

Input Output Update Interval

(IO-INTERVAL) 4

Data reporting rate for all points.

AV25051

Update rate:

  • min = 10 sec

  • max = 240 sec

  • default = 60 sec

Fault Reset

(FAULT-RESET) 5

Resets fault conditions on all inputs, including the fault LEDs and sensor fault points.

BV25052

1 - Off

2 - Reset

CWS1 Sensor Fault

(CWS1-FAULT)

Indicates a fault condition was detected on input 1 of the device. The point will latch to the active state until the Fault Resetpoint is commanded to reset.

BO25060

1 - Inactive

2 - Active

CWR1 Sensor Fault

(CWR1-FAULT)

Indicates a fault condition was detected on input 2 of the device. The point will latch to the active state until the Fault Resetpoint is commanded to reset.

BO25061

1 - Inactive

2 - Active

CWS2 Sensor Fault

(CWS2-FAULT)

Indicates a fault condition was detected on input 3 of the device. The point will latch to the active state until the Fault Resetpoint is commanded to reset.

BO25062

1 - Inactive

2 - Active

CWR2 Sensor Fault

(CWR2-FAULT)

Indicates a fault condition was detected on input 4 of the device. The point will latch to the active state until the Fault Resetpoint is commanded to reset.

BO25063

1 - Inactive

2 - Active

1 The Return-Supply Temperature 1 Difference present value is the difference between the present values of the CWS1-T and CWR1-T points.
2 The Return-Supply Temperature 2 Difference present value is the difference between the present values of the CWS2-T and CWR2-T points.
3 Verification Mode Enable may be used to temporarily accelerate the reporting rate of temperature and resistance data to 10-second intervals. This is intended to be used for system verification only. Enabling verification mode on multiple units simultaneously may degrade communication bus performance.
4 Input Output Update Interval controls the rate at which the TE-74 reports measurements. Decreasing this value may degrade communications bus performance.
5 Fault Reset resets fault indication points (CWS1-FAULT, CWR1-FAULT, CWS2-FAULT, and CWR2-FAULT) and fault indication LEDs. These fault indication points latch to the Active state when a fault is detected on an input channel. These fault indication points provide simple visual indication of potential system performance issues and will remain active until reset.