1756-OF8H

Specifications

Display

Module Health, In Calibration,Mode

Isolation

None between channels (Single,Ended)

Number Of Channels

8

Output Signal

+/- 10.4V, 0-20 mA, 4-20 mA

Special Features

Supports HART Protocol

Analogue inputs configurable

1

Analogue outputs configurable

0

Calibrated accuracy

Voltage: Better than 0.1% of range @ 25 °C (77 °F) with HART disabled, Current: Better than 0.15% of range @ 25 °C (77 °F) with HART disabled

Conducted RF immunity

10V rms with 1 kHz sine-wave 80% AM from 150 kHz...80 MHz

Data format

Integer mode (left justified, 2 s complement) IEEE 32-bit floating point

EFT/B immunity

±2kV @ 5kHz on signal ports

Emissions

IEC 61000-6-4

Enclosure type rating

None (open-style)

ESD immunity

6 kV contact discharges, 8 kV air discharges

Gain drift with temperature

Voltage: 20 ppm/°C, Current: 35 ppm/°C

Input conversion method

Successive approximation

Input, current

1

Input, resistance thermometer

0

Input, resistor

0

Input signal, configurable

1

Input, thermocouple

0

Input, voltage

1

Isolation voltage

50V (continuous), basic insulation type, output channels to backplane, No isolation between individual output channels type tested at 1500V AC @ 60s

Load reactance

Voltage: 1 µF, Current: 10 µH

Module error

Voltage: 0.15% of range, Current: 0.3% of range

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, sary masters, communication errors, or configuration changes can s

Module keying

Electronic, software configurable

Nonoperating temperature

-40 °C

North American temperature code

T4

Offset drift

100 µV/°C, 200 nA/°C

Open circuit detection time

Current output only (output must be set to <0.1 mA)

Operating temperature

0 °C <Ta <60 °C (32 °F <Ta <140 °F)

Output conversion method

R-Ladder DAC, monotonicity with no missing codes

Output, current

0

Output range

-10…10V, 0…20 mA, 4…20 mA

Outputs

Eight voltage or current, one HART modem per module

Output signal configurable

0

Output, voltage

0

Overvoltage protection

±24V DC

Power dissipation

4.92 W

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

Relative humidity

5...95% noncondensing

Resolution

15...16 bit for all ranges

RTB keying

User-defined mechanical

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

Shock

Operating: 30 G, Non operating: 50 G

Slot width

1

Suitable for safety functions

0

Surge transient immunity

±2kV line-earth (CM) on shielded ports

Surrounding air temperature, max

60 °C

Terminal block torque specifications

1756-TBNH: 1.36 Nm (12 in-lb.)

Thermal dissipation

16.78 BTU/h

Total backplane power

6.54 W

Type of electric connection

Screw-/spring clA connection

Vibration

2 G @ 10...500 Hz

Voltage and current ratings

Backplane: 5.1V DC @ 230mA, 24V DC @ 230mA, Output voltage: -10...+10.4V, Output current: 4...20 mA

Wire category

2 - on signal ports

Wire size

1756-TBNH: Single wire connection: 0.33...2.1 mm² (22...14 AWG) solid or stranded copper wire, rated at 105 °C (221 °F) or greater, 1.2 mm (3/64 in.) insulation maximum, 1756-TBNH: Double wire connection: 0.33...1.3 mm² (22...16 AWG) solid or stranded cop

Wire type

Copper

Bulletin

1756

Series

A

Lifecycle Status

Active