Specifications

Publication 1794-SG002D-EN-P - May 2012
Select FLEX I/O Modules 37
Modules Specifications
The following section shows more detailed module specifications in comparative
groups to facilitate your selection based on your requirements.
FLEX I/O Analog Input Modules
Analog Input Comparison
Catalog Number Input Signal Range Accuracy Drift
with Temperature
External DC
Supply
Current, Nom
Power
Dissipation, Max
Thermal Dissipation,
Max
1794-IE8
(1)
4…20 mA
0…20 mA
±10V
0…10V
Current Input: 0.0407% Full
Scale/°C
Voltage Input: 0.0428% Full
Scale/°C
60 mA @ 24V DC 3 W @ 31.2V DC 10.2 BTU/hr @ 31.2V DC
1794-IE8XT
1794-IE8H 4…20 mA 0.05%/°C of output signal
range
295 mA @ 24V DC 3.9 W 13.5 BTU/hr
1794-IE12 4…20 mA (user configurable)
0…20 mA (user configurable)
Current Input: 0.004% Full
Scale/°C
Voltage Input: 0.004% Full
Scale/°C
30 mA @ 24V DC;
45 mA @ 10.0V DC
1.2 W @ 31.2V DC;
1.1 W @ 24V DC;
0.9 W @ 10.0V DC
4.1 BTU/hr @ 31.2V DC
1794-IF4I
(1)
4…20 mA
0…20 mA
±20 mA
±10V
0…10V
±5V
0…5V
Current Input: 0.0038% Full
Scale/°C
Voltage Input: 0.0028% Full
Scale/°C
80 mA @ 24V DC 2.0 W @ 31.2V DC 6.9 BTU/hr @ 31.2V DC
1794-IF4IXT 6.8 BTU/hr @ 31.2V DC
1794-IF4CFXT
1794-IF8IH 4…20 mA (user configurable)
0…20 mA (user configurable)
0.4% Full Scale for 0 °C…55
°C
190 mA @ 24V DC 4.8 W @ 31.2V DC 6.8 BTU/hr @ 31.2V DC
1794-IR8
(1(2))
1…433 Ω Normal mode:
0.05% Full Scale (max)
Enhanced mode:
0.01% Full Scale (typical)
140 mA @ 24V DC 3 W @ 31.2V DC 10.2 BTU/hr @ 31.2V DC
1794-IRT8
(1)(2)
-40…100 mV DC for
thermocouples
0…325 mV DC for RTDs
0…500 Ω for resistance range
Hardware only in mV mode:
0.10% Full Scale
mV mode with filtering:
0.05% Full Scale
85 mA @ 24V DC
1794-IRT8XT 95 mA @ 24V DC
1794-IT8
(1)(2)
±76.5 mV 150 mA @ 24V DC
1794-IE8XOE4 4…20 mA (user configurable)
0…20 mA (user configurable)
Current Input or Output:
0.004% Full Scale @ 25 °C
Voltage Input or Output:
0.004% Full Scale @ 25 °C
140 mA @ 24V DC;
280 mA @ 10.0V DC
3.0 W @ 31.2V DC;
2.3 W @ 24V DC;
2.0 W @ 10.0V DC
10.3 BTU/hr @ 31.2V DC
1794-IE4XOE2
(1)
4…20 mA
0…20 mA
±10V
0…10V
Current Input: 0.0407% Full
Scale/°C
Voltage Input: 0.0428% Full
Scale/°C
Current Output: 0.0069% Full
Scale/°C
Voltage Output: 0.0045% Full
Scale/°C
70 mA @ 24V DC 4.0 W @ 31.2V DC 13.6 BTU/hr @ 31.2V DC
1794-IE4XOE2XT 164 mA @ 10.5V DC 15.3 BTU/hr @ 31.2V DC
1794-IF2XOF2I
(1)
4…20 mA
0…20 mA
±20 mA
±10V
0…10V
±5V
0…5V
Current Input: 0.0038% Full
Scale/°C
Voltage Input: 0.0028% Full
Scale/°C
Current Output: 0.0025% Full
Scale/°C
Voltage Output: 0.0012% Full
Scale/°C
150 mA @ 24V DC 3.3 W @ 31.2V DC 11 BTU/hr @ 31.2V DC
1794-IF2XOF2IXT 2.0 W @ 31.2V DC 6.8 BTU/hr @ 31.2V DC
(1) Each module’s channel is individually selectable or as a group of four.
(2) For the accuracy calculation, refer to the module’s user manual.