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| Input, current | Yes |
| Input, voltage | Yes |
| Input, resistor | No |
| Input, resistance thermometer | No |
| Input, thermocouple | No |
| Input signal, configurable | Yes |
| Output, current | No |
| Output, voltage | No |
| Output signal configurable | No |
| Analogue inputs configurable | Yes |
| Analogue outputs configurable | No |
| Type of electric connection | Screw-/spring clamp connection |
| Wire type | Copper |
| Output range | -10â⬦10V, 0â⬦20 mA, 4â⬦20 mA |
| Load reactance | Voltage: 1 üF, Current: 10 üH |
| Terminal block torque specifications | 1756-TBNH: 1.36 Nm (12 lb. in.) |
| Input conversion method | Successive approximation |
| Module keying | Electronic, software configurable |
| Offset drift | 100 õV/ðC, 200 nA/ðC |
| Output conversion method | R-Ladder DAC, monotonicity with no missing codes |
| Outputs | Eight voltage or current, one HART modem per module |
| Data format | Integer mode (left justified, 2 s complement) IEEE 32-bit floating point |
| Wire category | 2 - on signal ports |
| Overvoltage protection | ñ24V DC |
| Module error | Voltage: 0.15% of range, Current: 0.3% of range |
| Gain drift with temperature | Voltage: 20 ppm/ðC, Current: 35 ppm/ðC |
| Voltage and current ratings | Backplane: 5.1V DC, 230 mA, 24V DC, 230 mA, Output voltage: -10...+10.4V, Output current: 4...20 mA |
| Settling time | Current (no HART): <23 ms to 95% with resistive loads, current (with HART): <37 ms to 95% with resistive loads, voltage: <8.5 ms to 95% with resistive loads |
| Total backplane power | 6.54 W |
| Thermal dissipation | 16.78 BTU/h |
| Power dissipation | 4.92 W |
| Resolution | 15...16 bits for all ranges |
| Wire size | 1756-TBNH: Single wire connection: 0.33...2.1 mmò (22...14 AWG) solid or stranded copper wire, rated at 105 ðC (221 ðF) or greater, 1.2 mm (3/64 in.) insulation maximum, 1756-TBNH: Double wire connection: 0.33...1.3 mmò (22...16 AWG) solid or stranded cop |
| Calibrated accuracy | Voltage: Better than 0.1% of range @ 25 ðC (77 ðF) with HART disabled, Current: Better than 0.15% of range @ 25 ðC (77 ðF) with HART disabled |
| Open circuit detection time | Current output only (output must be set to <0.1 mA) |
| Module HART scan time | Analog: 12 ms, minimum, floating point, HART: typically 1 s per HART channel enabled. Estimate 10 s if all 8 channels have HART enabled, Pass through messages, handheld communicators, secondary masters, communication errors, or configuration changes can s |
| Suitable for safety functions | No |
| Surrounding air temperature, max | 60 ðC |
| North American temperature code | T4 |
| Emissions | IEC 61000-6-4 |
| ESD immunity | 6 kV contact discharges, 8 kV air discharges |
| EFT/B immunity | ñ2kV at 5 kHz on signal ports |
| Relative humidity | 5...95% noncondensing |
| Conducted RF immunity | 10V rms with 1 kHz sine-wave 80% AM from 150 kHz...80 MHz |
| Surge transient immunity | ñ2kV line-earth (CM) on shielded ports |
| Operating temperature | 0 ðC |
| 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 |
| Nonoperating temperature | -40 ðC |
| RTB keying | User-defined mechanical |
| Vibration | 2 G @ 10...500 Hz |
| Shock | Operating: 30 G, Non operating: 50 G |
| Slot width | 1 |
| Calibration interval | 12 months typical |
| ATEX temperature code | T4 |
| IECEx temperature code | T4 |
| Isolation voltage | 50V (continuous), basic insulation type, output channels to backplane, No isolation between individual output channels type tested at 1500V AC for 60 s |
| Enclosure type rating | None (open-style) |
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