The Allen Bradley 1756-IF16K module is an analog I/O module with a conformal coating for Allen Bradley ControlLogix 5580 controllers. There are 16 single-ended inputs on the 1756-IF16K module, out of which 8 can be used as differential inputs and 4 as high-speed differential inputs.
The module can be used for voltage and current input. The input ranges that are supported are ±10 Volts, 0 to 10 Volts, 0 to 5 Volts, and 0 to 20 milliamps. The input resolution is 320 microvolts/count (15 bits + sign bipolar) at ±10.25 Volts, 160 microvolts/count (16 bits) at 0 to 10.25 Volts, 80 microvolts/count (16 bits) at 0 to 5.125 Volts, and 0.32 microamps/count (16 bits) at 0 to 20.5 milliamps.
The module current draw for the 1756-IF16K module is 65 milliamps at 24 Volts and it is 150 milliamps at 5.1 Volts. Total backplane power consumption is 2.33 Watts. The input voltage range for the module is -10 to 10 Volts and the input current range is 4 to 20 milliamps. The power consumption is less than 100 VA. The power dissipation for the module is 2.3 Watts when it is used for voltage input and 3.9 Watts when it is used for current input. The thermal dissipation for the 1756-IF16K module when it is used for voltage input is 7.8 BTU per hour and 13.3 BTU per hour when it is used for current input. The input impedance for voltage input is greater than 10 megaohms and it is 249 Ohms for the current input. The conversion method used on the 1756-IF16K module is the sigma-delta method. The 1756-IF16K module complies with the T4 ATEX temperature code.
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| Manufacturer | Rockwell Automation |
| Brand | Allen Bradley |
| Part Number/Catalog No. | 1756-IF16K |
| Series | ControlLogix |
| Module Type | Analog Input Module |
| Inputs | 16 single, 8 differential, 4 highspeed differential |
| Input Resolution | (+–)10.25 Volts, 0-5.125 Volts, 0-10.25 Volts |
| Backplane Current (5Volts) | 150 milliamps |
| Backplane Current (24Volts) | 65 milliamps |
| Power Dissipation (Max) | 2.3 Watts (Voltage), 3.9 Watts (Current) |
| Removeable Terminal Blocks | 1756-TBCH, 1756-TBS6H |
| Maximum Input Current, Off-State | 1.5 milliamperes |