ALLEN BRADLEY 1756-IF16 Analog Input Module

Inputs

16 single-ended, 8 differential, or 4 differential (high speed)

Input Range

±10V, 0…10V, 0…5V, 0…20 mA

Resolution

320 µV/count (15-bit + sign bipolar) @ ±10.25V  160 µV/count (16-bit) @ 0…10.25V  80 µV/count (16-bit) @ 0…5.125V  0.32 µA/count (16-bit) @ 0…20.5 mA

Current Draw @ 5.1V

200 mA

Current Draw @ 24V

35 mA

Total Backplane Power

1.86 W

Voltage and Current Ratings

Backplane: 5.1V DC (200 mA max), 24V DC (35 mA max)  Input Voltage Range: -10…+10V  Input Current Range: 0…20mA  Limited to 100VA

Power Consumption

2.33 W

Power Dissipation

Voltage: 1.86 W  Current: 3.53 W

Thermal Dissipation

Voltage: 6.35 BTU/hr  Current: 12.06 BTU/hr

Input Impedance

Voltage: ≥10 MΩ  Current: 249 Ω

Open Circuit Detection Time

Differential current/voltage: Positive full-scale reading within 5 s  Single-ended current/voltage: Even-numbered channels go to positive full scale within 5 s, odd-numbered go to negative full scale within 5 s

Overvoltage Protection, Max

Voltage: 30V DC  Current: 8V DC

Normal Mode Noise Rejection

>80 dB @ 50/60 Hz

Common Mode Noise Rejection

>100 dB @ 50/60 Hz

Channel Bandwidth

15 Hz (-3 dB)

Calibrated Accuracy (25 °C)

Voltage: Better than 0.05% of range  Current: Better than 0.15% of range

Offset Drift

45 µV/°C

Gain Drift with Temperature

Voltage: 15 ppm/°C  Current: 20 ppm/°C

Module Error

Voltage: 0.1% of range  Current: 0.3% of range

Module Input Scan Time, Min

16 pt single-ended: 16…488 ms  8 pt differential: 8…244 ms  4 pt differential: 5…122 ms

Onboard Data Alarming

Yes

Scaling to Engineering Units

Yes

Real-Time Channel Sampling

Yes

Data Format

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

Module Conversion Method

Sigma-Delta

Isolation Voltage

250V (continuous), Basic insulation type (Inputs-to-Backplane)  No isolation between individual inputs

Module Keying

Electronic, software configurable

Removable Terminal Block

1756-TBCH, 1756-TBS6H

RTB Keying

User-defined mechanical

Slot Width

1

Wire Size

Compatible with 1756-TBCH