Page 1
MAN0237-09 10 NOV 2006 PAGE 1
THM000/100
Thermocouple /
Millivolt Input Module
HE800THM000 / HE800THM100
HE-THM000 / HE-THM100*
* HE- denotes plastic case.
This datasheet also covers products starting with IC300.
1 SPECIFICATIONS
Number of Channels 2 4 PLC Update Rate Set by PLC Scan Rate
Resolution
Input Impedance
A/D Conversion Type Integrating
Required Power
(Steady State)
Required Power
(Inrush)
Types Supported J,K,T,E,C,R,S
Millivolt Ranges
Millivolt Accuracy 0.1% Full Scale
Common Channel
Points
Thermocouple Type: J K T E
Input Range
Temperature
CE
UL
THM000 THM100
0.05°C
10Meg Ohm clamped @
±24VDC
0.34W (14.3mA @
24VDC)
Negligilble
±25mv, ±50mv,
±100mv
None
-210°C to
770°C
(-346°F to
1418°F)
C
0°C to
2320°C
(32°F to
4208°F)
See Compliance Table at http://www.heapg.com/Support/compliance.htm
Analog Input
Points Required
Cold Junction
Compensation
Maximum
Sustained
Differential O/L
Common Mode
Range
A/D Conversion
Time
Open
Thermocouple
Response
Operating
Temperature
Relative Humidity 5 to 95% Non-condensing
Weight 9.5 oz. (270 g)
(Accuracy Specifications not guaranteed below -200°C)
Types J,K,T, & E
±1°C
-270°C to
1380°C
(-454°F to
2516°F)
R
0°C to
1760°C
(32°F to
3200°F)
THM000 THM100
2 4
Internal or External;
Automatically Selected
Limited by Common Mode
Range
± 12VDC Max.
16 channels per second
High Temperature
0° to 60° Celsius
Accuracy
Type C
To Be
Determined
-270°C to
410 °C
(-454°F to
770°F)
Types R & S
±4°C
-270°C to
1010°C
(-454°F to
1850°F)
S
0°C to
1760°C
(32°F to
3200°F)
This Data Sheet is published individually & also as a part of the SmartStack Supplement (SUP0246-05).
Information is subject to change without notice. SmartStack is a trademark of Horner APG, LLC.
Page 2
PAGE 2 10 NOV 2006 MAN0237-09
THM000/100
2 WIRING
**
AD 592
1+
1+
1-
1-
2+
2+
2-
2-
3+
3+
3-
3-
4+
4+
4-
4-
S+
S+
S-
S-
001THM001
*
Pin
1+ Thermocouple 1 + Thermocouple 1 +
1- Thermocouple 1 - Thermocouple 1 -
Shield Shield
2+ Thermocouple 2 + Thermocouple 2 +
2- Thermocouple 2 - Thermocouple 2 -
Shield Shield
3+ Thermocouple 3 +
3- Thermocouple 3 -
Shield
4+ Thermocouple 4 +
4- Thermocouple 4 -
Shield
S+ External AD592 +
S- External AD592 -
*
OCS Bottom View – Shows
Corresponding I/O Pin
Signal
THM100 THM000
** The AD592 is a 1uA/°K integrated circuit temperature sensor manufactured by Analog Devices. It may be used for
external cold junction compensation for the THM100. The THM100 needs to be calibrated with a specific AD592 to
meet accuracy specifications in external compensation mode.
This Data Sheet is published individually & also as a part of the SmartStack Supplement (SUP0246-05).
Information is subject to change without notice. SmartStack is a trademark of Horner APG, LLC.
Page 3
MAN0237-09 10 NOV 2006 PAGE 3
THM000/100
3 CONFIGURATION
Note: The status of the I/O can be monitored in Cscape Software.
Preliminary configuration procedures that apply to SmartStack™ Modules are contained in the hardware
manual of the controller you are using. Refer to the Additional References section in this data sheet for
a listing of hardware manuals.
Module Setup Tab
a) Sensor Type for each channel must match what is physically attached.
b) Temperature format may be set for various C° or F° ranges. (This does not
apply to millivolt
ranges.)
c) Filter Constant sets the level of digital filtering according to the chart below.
d) Reject Rates sets the frequency level for noise rejection at 50 or 60HZ.
I/O Map Tab
The I/O Map describes which I/O registers are assigned to a specific SmartStack™ Module and where the
module is located in the point map. The I/O Map is determined by the model number and location within
the SmartStack™. The I/O Map is not
edited by the user.
1
2 3 4 5 6 70
Filter
Constant
%Complet e [ ]
100
90
80
70
60
50
40
30
20
10
0
750ms
1250ms500ms 1000ms250ms0
Scans
Digital Filtering. The illustration above demonstrates the effect of digital filtering (set with Filter
Constant) on module response to a temperature change.
This Data Sheet is published individually & also as a part of the SmartStack Supplement (SUP0246-05).
Information is subject to change without notice. SmartStack is a trademark of Horner APG, LLC.
Page 4
PAGE 4 10 NOV 2006 MAN0237-09
THM000/100
4 INPUT AND OUTPUT CONVERSIONS
For a given module configuration, use the appropriate formula in the table to obtain the actual
temperature (°C or °F) that is represented by the value in the %AI register.
Thermocouple
Temperature Conversion
Configuration
Celsius Fahrenheit
0.05°
°C = %AI / 20
* °F = %AI / 20 *
0.1° °C = %AI / 10 ** °F = %AI / 10 **
0.5° °C = %AI / 2 °F = %AI / 2
* Maximum reading in 0.05°F or 0.05°C format is limited to 1638.3 because of %AI
resolution.
** Maximum reading in 0.1°F or 0.1°C format is limited to 3276.7 because of %AI
resolution.
The following table describes how real-world inputs are scaled into the controller. Given a known input
voltage, the data value is configured by using the conversion factor from the table. The following formula
is used: Data = Voltage In (Vin) / Conversion Factor
Example: The user selects a voltage of 25mV.
1) The known input voltage is 25mV.
2) Using the table, the conversion factor for the voltage range of ± 25mV is 0.00078125.
3) To determine the data value, the formula is used:
Data = Vin / Conversion Factor
32000 = 25mV / 0.00078125
Conversion of Real-World Inputs to the Controller
%AI Value
Selected
Voltage Range
Voltage In
Data Out
Conversion
Factor
(Vin) VDC
± 25mv
-25mv -32000
0.00078125
0 0
+25mv +32000
± 50mv
-50mv -32000
0.0015625
0 0
+50mv +32000
± 100mv
-100mv -32000
0.003125
0 0
+100mv +32000
This Data Sheet is published individually & also as a part of the SmartStack Supplement (SUP0246-05).
Information is subject to change without notice. SmartStack is a trademark of Horner APG, LLC.
Page 5
MAN0237-09 10 NOV 2006 PAGE 5
THM000/100
5 INSTALLATION / SAFETY
Warning: Remove power from the OCS controller, CAN port, and any peripheral equipment
connected to this local system before adding or replacing this or any module.
1) All applicable codes and standards should be followed in the installation of this produ ct.
2) Shielded, twisted-pair wiring should be used for best performance.
3) Shields may be terminated at the module terminal strip
4) In severe applications, shields should be tied directly to the ground block within the panel.
5) Ungrounded thermocouple sensors are preferred due to their isolated electrical
characteristics
6) Interposing terminal strips between the sensor and the module can cause errors due to cold
junction effect.
7) If Interposing terminal strips must be used, use specially constructed terminal blocks which
match the material characteristics of the thermocouple sensor.
8) Use the following wire type or equivalent: Omega TT-J-20-TWSH for thermocouple input and
Belden 8441 for mV input.
9) Horner thermocouple input modules use a high impedance differential circuit to support the
use of grounded or ungrounded thermocouples. For grounded thermocouples, the specified
Common Mode Range allows for ground potential differences between the machine ground
and the PLC ground within that range. For ungrounded or floating thermocouples the high
impedance inputs are subject to common mode noise pickup. For noisy environments it is
recommended that one side of all ungrounded thermocouples be grounded near the PLC.
This does not affect open thermocouple detection or measurement accuracy and reduces the
effect of common mode noise if present. This PLC side ground connection must not
with grounded thermocouples or accuracy will be affected. Any thermocouple should be
grounded in one place at most.
For detailed installation and a handy checklist
that covers panel box layout requirements and minimum
clearances, refer to the hardware manual of the controller you are using. (See the Additional
References section in this document.)
be used
This Data Sheet is published individually & also as a part of the SmartStack Supplement (SUP0246-05).
Information is subject to change without notice. SmartStack is a trademark of Horner APG, LLC.
Page 6
PAGE 6 10 NOV 2006 MAN0237-09
THM000/100
When found on the product, the following symbols specify:
Warning: Consult user documentation.
Warning: Electrical Shock Hazard.
WARNING: To avoid the risk of electric shock or burns, always connect the safety (or earth)
ground before making any other connections.
WARNING: To reduce the risk of fire, electrical shock, or physical injury it is strongly
recommended to fuse the voltage measurement inputs. Be sure to locate fuses as close to the
source as possible.
WARNING: Replace fuse with the same type and rating to provide protection against risk of fire
and shock hazards.
WARNING: In the event of repeated failure, do not replace the fuse again as a repeated failure
indicates a defective condition that will not clear by replacing the fuse.
WARNING: Only qualified electrical personnel familiar with the construction and operation of
this equipment and the hazards involved should install, adjust, operate, or service this
equipment. Read and understand this manual and other applicable manuals in their entirety
before proceeding. Failure to observe this precaution could result in severe bodily injury or loss
of life.
For detailed installation and a handy checklist that covers panel box layout requirements and minimum
clearances, refer to the hardware manual of the controller you are using. (See the Additional
References section in this document.)
• All applicable codes and standards need to be followed in the installation of this product.
• For I/O wiring (discrete), use the following wire type or equivalent: Belden 9918, 18 AWG or
larger.
Adhere to the following safety precautions whenever any type of connection is made to the module.
• Connect the green safety (earth) ground first before making any other connections.
• When connecting to electric circuits or pulse-initiating equipment, open their related breakers.
make connections to live power lines.
Do not
• Make connections to the module first; then conne ct to the circuit to be monitored.
• Route power wires in a safe manner in accordance with good practice and local codes.
• Wear proper personal protective equipment including safety glasses an d insulated gloves
when making connections to power circuits.
• Ensure hands, shoes, and floor are dry before making any connection to a power line.
• Make sure the unit is turned OFF before making connection to terminals. Make sure all
circuits are de-energized before making connections.
• Before each use, inspect all cables for breaks or cra cks in the in sulation. Replace
immediately if defective.
This Data Sheet is published individually & also as a part of the SmartStack Supplement (SUP0246-05).
Information is subject to change without notice. SmartStack is a trademark of Horner APG, LLC.
Page 7
MAN0237-09 10 NOV 2006 PAGE 7
THM000/100
6 ADDITIONAL REFERENCES
The following information serves as a general listing of Horner controller products and other references of
interest and their corresponding manuals numbers. Visit our website listed in the Technical Support
section to obtain user documentation and updates.
Note: This list is not intended for users to determine which products are appropriate for their
application; controller products differ in the features that they support. If assistance is required,
see the Technical Support section in this document.
Controller Manual Number
XLE Series (e.g., HE-XExxx) MAN0805
QX Series (e.g., HE-QXxxx) MAN0798
NX Series (e.g., HE-NXxxx) MAN0781
LX Series (e.g., LX-xxx; also covers RCS116) MAN0755
Color Touch OCS (e.g., OCSxxx) MAN0465
OCS (Operator Control Station) (e.g., OCS1xx / 2xx; Graphic
OCS250)
Remote Control Station (e.g., RCS2x0)
MiniOCS (e.g., HE500OCSxxx, HE500RCSxxx) MAN0305
Other Useful References
CAN Networks MAN0799
Cscape Programming and Reference MAN0313
Wiring Accessories and Spare Parts Manual MAN0347
DeviceNet™ Implementation
Wiring Accessories and Spare Parts Manual MAN0347
MAN0227
SUP0326
7 TECHNICAL SUPPORT
For assistance and manual up-dates, contact Technical Support at the following locations:
North America:
(317) 916-4274
www.heapg.com
This Data Sheet is published individually & also as a part of the SmartStack Supplement (SUP0246-05).
Information is subject to change without notice. SmartStack is a trademark of Horner APG, LLC.
Europe:
(+) 353-21-4321-266
www.horner-apg.com
Page 8
PAGE 8 10 NOV 2006 MAN0237-09
THM000/100
NOTES
This Data Sheet is published individually & also as a part of the SmartStack Supplement (SUP0246-05).
Information is subject to change without notice. SmartStack is a trademark of Horner APG, LLC.
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