Rockwell Automation 1734-IT2I Thermocouple and RTD Input Module User Manual - Manual (Page 12)

Publication 1734-UM004F-EN-E - December 2012
2 About POINT I/O Modules
Selecting a Module Input
Type The 1734-IT2I module consists of two isolated millivolt inputs (+70 mV).
Configure the module to do the linearization necessary for thermocouple
inputs. See the table for a list of supported thermocouple input types.
The 1734-IR2 consists of two RTD inputs (0...600 W). Configure the module
to do the linearization necessary for RTD inputs. See the table for a list of
supported input types.
The 1734-IR2E consists of two RTD inputs (0...200 W). Configure the module
to do the linearization necessary for RTD inputs. See the table for a list of
supported input types.
Communicating with Your
Module I/O messages are sent to (consumed) and received from (produced) the
POINT I/O modules. These messages are mapped into the processor’s
memory. The Thermocouple input module produces 8 bytes of input data
(scanner Rx) and fault status data. It does not consume I/O data (scanner Tx).
The RTD input module produces 6 bytes of input data (scanner Rx) and fault
status data. It does not consume I/O data (scanner Tx).
Supported Sensor Types – Thermocouple
mV (default) -70...+70 mV
B 572...3272 °F (300...1800 °C)
C 32...4199 °F (0...2315 °C)
E -418...+1832 °F (-250...+1000 °C)
J -346...+2192 °F (-210...+1200 °C)
K -418...+2502 °F (-250...+1372 °C)
N -418...+2372 °F (-250...+1300 °C)
R 32...3214 °F (0...1768 °C)
S 32...3214 °F (0...1768 °C)
T -418...+752 °F (-250...+400 °C)
Supportted Sensor Types – RTD
100 Pt
α
= 0.00385 Euro -328...1598 °F (-200...+870 °C)
200 Pt
α
= 0.00385 Euro -328...1166 °F (-200...+630 °C)
100 Pt
α
= 0.003916 U.S. -328...1166 °F (-200...+630 °C)
200 Pt
α
= 0.003916 U.S. -328...1166 °F (-200...+630 °C)
10 Cu
α
= 0.00427 -328...500 °F (-200...+260 °C)
100 Ni
α
= 0.00618 -76...+482 °F (-60...+250 °C)
120 Ni
α
= 0.00618 -76...+482 °F (-60...+250 °C)
120 Ni
α
= 0.00672 -76...+482 °F (-60...+250 °C)