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Hey there Contractors and fellow Service Professionals!
Today we are covering the Allen Bradley 1756-IF8 Series A PLC.
This is a ControlLogix Current/Voltage Analog Input Module with 8 Poles (36-Pin). Chassis mounting type.
Allen Bradley 1756-IF8 ControlLogix Input Module
When this 1756-IF8 ControlLogix is operating in 2-Channel High Speed mode, only channels 0 and 2 can be used. It uses one of the following RTBs: 1756-TBCH 36 position Cage clamp RTB or 1756-TBS6H 36 position Spring clamp RTB. The extended depth cover (1756-TBE) can be used for applications with heave gauge wiring.
Allen Bradley 1756-IF8 ControlLogix Voltage/Current Analog Input 36-Pin
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Now onto the Specifications in table format…
| Allen Bradley 1756-IF8 Series A | |
|---|---|
| Number of Inputs | 8 Single-Ended, 4 Differential, 2 High-Speed Differential |
| Input Range | +/- 10.25V (15 bits plus sign bipolar), 0-10.25V (16 bits), 0-5.125V (16 bits), 0-20.5mA (16 bits) |
| Data Format | Integer Mode (Left justified, 2s complement), Floating Point IEEE 32 bit |
| Input Impedance | Voltage: >1 MΩ Current: 249 MΩ |
| Module Error | Voltage: 0.1% Current: 0.3% |
| Backplane Current | 150 mA at 5.1 VDC 40 mA at 24 VDC |
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1756-IF8 ControlLogix Module – Differential Current / Voltage
Allen Bradley 1756-IF8 ControlLogix Module – Single-ended Current / Voltage
This ControlLogix module supports on-board data alarming, scaling to engineering units, real-time channel sampling, IEEE 32-bit floating point or 16-bit integer data formats.
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