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Description
Technical Specifications for 1794-IE12
| Manufacturer | Rockwell Automation |
| Product Description: | Flex IO High Density Analog Input Module |
| Operating Shock: | 30 g |
| Vibration: | 5g @ 10 to 500 Hz |
| Storage Temperature: | –40…85 °C (–40…185 °F) |
| Operating Temperature: | 0 to 55 C (32 to 131 F) |
| Wire Size: | Determined by installed terminal base |
| Mounting: | DIN Rail |
| External DC supply range: | 10.0…31.2V DC (includes 5% AC ripple) |
| External DC supply, nom: | 24V DC |
| Indicators: | 1 green/red power/status indicator |
| Terminal base: | 1794-TB3G; 1794-TB3GS |
| Absolute Accuracy: | 0.1% full scale @ 25 °C |
| Resolution: | 16 bit 2’s complement, left justified Voltage: 320 ?V/cnt Current: 0.641 ?A/cnt |
| Conversion Type: | Successive Approximation |
| Input type: | 0 to 20 mA; 4 to 20 mA; +/- 10VDC; 0 to 10 VDC |
| No. of inputs: | Twelve (12) Single Ended |
| Brand | Allen-Bradley |
| Conversion Rate | 8.0 ms all channels |
| Part Number/Catalog No. | 1794-IE12 |
| Product Type | Flex I/O High-Density Analog Module |
| Inputs | 12 Single-ended |
| Resolution Voltage Current | 320 ?V/cnt |
| Input Current Terminal | 4-20mA |
| Input Voltage Terminal | +/- 10V |
| FlexBus Current | 80 mA |
| External DC Power Supply | 24V DC nom. |
| Isolation Voltage | 50V Continuous |
| Power Dissipation | 1.2W @ 31.2V DC max. |
| Thermal Dissipation | 4.1 BTU/hr. @ 31.2V DC max. |
| UPC | 10612598320179 |
About 1794-IE12
The 1794-IE12 comes with Twelve (12) analog input channels, configurable for 0 to 20mA, 4 to 20 mA, +/- 10VDC and 0 to 10 VDC input signal type. It has an integrated analog to digital conversion circuitry using successive approximation method with resolution of 320 ?V/cnt for voltage and 0.641 ?A/cnt for current. The analog data format is stored in a 16-bit, left justified register with 8.0 ms conversion rate on all channels. The absolute accuracy of the 1794-IE12 is 0.1% full scale @ 25 °C for Voltage and current input with accuracy drift of 0.004% Full Scale/°C.
The 1794-IE12 is designed for use with the 1794-TB3G and 1794-TB3GS terminal bases. Only one terminal base is required per module. When installing the module to the appropriate terminal base, the intended keyswitch position is 3. Keyswitch position is a fool-proof hardware installation key preventing incorrect modules from being installed to incorrect terminal base.
The 1794-IE12 operates when supplied with a nominal voltage supply of 24VDC, with an acceptable voltage supply range of 10 to 31.2 VDC. It has a physical dimension of 3.7 x 3.7 x 2.1 inches. Status of the module is reported in groups through the Light Emitting Diode (LED) green/red power/status indicator.
