| 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 |
| Input offset drift with temperature |
<=300 µA/°C |
| Wire type |
Copper |
| Terminal block torque specifications |
1756-TBCH: 0.5 Nm (4.4 lb.in) |
| Inrush current |
400 mA @ 5V, 450 mA @ 24V |
| Input conversion method |
Sigma-Delta ADC (24-bit converter) |
| Module keying |
Electronic, software configurable |
| Module error over full temperature range |
0.3% of range (all filters) with HART disabled |
| Input range |
0…20 mA (0…20.58 mA), 4…20 mA (3.42…20.58 mA) |
| Data format |
32-bit floating point |
| Wire category |
2 – on signal ports |
| Common mode noise rejection |
>90 dB @ 50/60 Hz (10 Hz, 15 Hz or 20 Hz filters only) |
| 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 |
| Gain drift with temperature |
20 ppm/°C |
| Voltage and current ratings |
Backplane: 210 mA @ 5.1V DC, 110 mA @ 24V DC, Input voltage range: 5…30V DC, Input current range: 0…20 mA, 4…20mA |
| Typical module HART dynamic variables update time for all channels |
1 s typical if all channels are HART enabled Pass through messages, handheld communications, secondary masters, communication errors, or configuration changes can significantly increase the update time. |
| Module scan time |
18…488 ms (filter dependent) for all channels – analog, minimum |
| Inputs |
Eight current inputs |
| Resolution |
16 to 21 Bit |
| 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 |
| 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 |
| Open circuit detection time |
5 s (4…20 mA range only) |
| Suitable for safety functions |
No |
| Power dissipation within module |
4 W |
| Input overvoltage protection |
28.8V DC |
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