Product Description
General Information
• Manufacturer: Allen-Bradley
• Model/Part Number: 1756-IF16
• Description: Analog Input Module
Technical Specifications
|
Attribute |
1756-IF16, 1756-IF16K |
|---|---|
|
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 |