Product Model
1756-IF8IH
Selling Points
- 11. Compatibility with ControlLogix System: The Allen Bradley 1756-IF8IH is specifically designed to integrate seamlessly with the ControlLogix system, ensuring smooth operation and efficient data processing in industrial automation environments.;
- 22. 8 Isolated Differential Current Inputs: With 8 isolated differential current inputs, this module provides a high level of input flexibility, allowing for the connection of multiple sensors and transmitters simultaneously.;
- 33. HART Communication Protocol: The module supports the HART (Highway Addressable Remote Transducer) communication protocol, enabling the transmission of data between devices using a single wire, reducing the need for additional communication infrastructure.;
- 44. High Resolution and Accuracy: The 1756-IF8IH offers a resolution of 16-21 bits, ensuring high accuracy in data measurement and processing. This is particularly crucial in applications where precise control and monitoring are essential.;
- 55. Overvoltage Protection and Open-Circuit Detection: The module includes overvoltage protection up to ±24 volts and open-circuit detection, which allows it to report negative full-scale values and handle open-circuit conditions effectively, reducing the risk of data errors and ensuring reliable operation.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
| Parameter | Value | Parameter | Value |
|---|---|---|---|
Dimension Unit | CM | Weight Unit | KG |
Weight | 0.379 | Stock Status | STOCKED |
Dimension Length | 21.844 | Dimension Width | 18.288 |
Lead Time | 5 | Dimension Height | 5.461 |
Quick Turnaround | false | Preferred Availability | true |
Repairable | REPAIRABLE | Enclosure type rating | None (open-style) |
Isolation voltage | 250V (continuous), Reinforced insulation type, inputs to backplane, Basic insulation type, input to input, and inputs to ground. | Input impedance | 250 ? ±5 ? |
IECEx temperature code | T4 | ATEX temperature code | T4 |
Calibration interval | 12 mo typical | Slot width | 1 |
Shock | Operating: 30 G, Non operating: 50 G | Vibration | 2 G @ 10...500 Hz |
RTB keying | User-defined mechanical | Nonoperating temperature | -40 °C |
Radiated RF immunity | 10 V/m with 1 kHz sine-wave 80% AM from 80...2000 MHz, 10 V/m with 200 Hz 50% pulse 100% AM @ 900 MHz, 10 V/m with 200 Hz 50% pulse 100% AM @ 1890 MHz, 3 V/m with 1 kHz sine-wave 80% AM from 2000...2700 MHz | Operating temperature | 0 °C <Ta <60 °C (32 °F <Ta <140 °F) |
Surge transient immunity | ±2 kV line-earth (CM) on shielded signal ports | Conducted RF immunity | 10V rms with 1 kHz sine wave 80% AM from 150 kHz...80 MHz on shielded signal ports |
Relative humidity | 5...95% noncondensing | EFT/B immunity | ±2kV @ 5kHz on signal ports |
ESD immunity | 6 kV contact discharges, 8 kV air discharges | Emissions | IEC 61000-6-4 |
North American temperature code | T5 | Surrounding air temperature, max | 60 °C |
Input overvoltage protection | 28.8V DC | Power dissipation within module | 4 W |
Suitable for safety functions | No | Open circuit detection time | 5 s (4...20 mA range only) |
Calibrated accuracy | 0.15...1.5% of full scale, filter dependent@ 25 °C with HART disabled, 1.5% of full scale with 250 Hz filter @ 25 °C with HART enabled, 0.5% of full scale with 100 Hz filter @ 25 °C with HART enabled, 0.2% of full scale with 50 Hz or 60 Hz filter @ 25 °C | Wire size | Single wire connection (1756-TBCH): 0.33...2.1 mm2 (22...14 AWG) solid or stranded shielded copper wire, rated at 105 °C (221 °F) or greater, 1.2 mm (3/64 in.) insulation maximum, Single wire connection (1756-TBS6H): 0.33...2.1 mm2 (22...14 AWG) solid or |
Resolution | 16 to 21 bit | Inputs | Eight current inputs |
Module scan time | 18...488 ms (filter dependent) for all channels - analog, minimum | Typical module HART dynamic variables update time for all channels | 1 s typical if all channels are HART enabled Pass through messages, handheld communications, sary masters, communication errors, or configuration changes can significantly increase the update time. |
Voltage and current ratings | Backplane: 210mA @ 5.1V DC, 110mA @ 24V DC, Input voltage range: 5...30V DC, Input current range: 0...20mA @ 4...20mA | Gain drift with temperature | 20 ppm/°C |
Normal mode noise rejection | >90 dB @ 50 Hz and 60 Hz with 10 Hz filter, >74 dB @ 50 Hz and 60 Hz with 15 Hz filter, >33 dB @ 50 Hz and >90 dB @ 60 Hz with 20 Hz filter | Common mode noise rejection | >90 dB @ 50/60 Hz (10 Hz, 15 Hz or 20 Hz filters only) |
Wire category | 2 - on signal ports | Data format | 32-bit floating point |
Input range | 0...20 mA (0...20.58 mA), 4...20 mA (3.42...20.58 mA) | Module error over full temperature range | 0.3% of range (all filters) with HART disabled |
Module keying | Electronic, software configurable | Input conversion method | Sigma-Delta ADC (24-bit converter) |
Inrush current | 400mA @ 5V, 450mA @ 24V | Terminal block torque specifications | 1756-TBCH: 0.5 Nm (4.4 in-lb) |
Wire type | Copper | Input offset drift with temperature | <=300 μA/°C |
Type of electric connection | Screw-/spring clA connection | Analogue outputs configurable | No |
Analogue inputs configurable | Yes | Output signal configurable | No |
Output, voltage | No | Output, current | No |
Input signal, configurable | Yes | Input, thermocouple | No |
Input, resistance thermometer | No | Input, resistor | No |
Input, voltage | Yes | Input, current | Yes |
Number Of Channels | 8 | Isolation | 250V (continuous), reinforced insulation type, inputs to backplane |
Input Signal | 0-20mA, 4-20mA |
Specifications may be subject to change without notice