Allen Bradley
16-Channel Isolated HART Input 1756-IF16IHK Allen Bradley
Manufacturer: Allen Bradley
Product No.: 1756-IF16IHK
Product Type: HART Analog Input Module
Product Origin: USA
Payment: T/T
Weight: 1100g
Shipping port: Xiamen
Warranty: 12 months
Yes, we provide a 30-day money-back guarantee for all purchases.
Yes, all items come with a 12-month warranty from the date of shipment.
Product Overview
The Allen-Bradley 1756-IF16IHK is a conformal-coated 16-channel isolated HART analog input module for ControlLogix systems. It provides individually isolated current input channels with integrated HART communication, enabling process variable measurement and smart device diagnostics in harsh industrial environments.
Key Specs
- Input channels: 16 individually isolated, current
- Input ranges: 0-20 mA, 4-20 mA
- Resolution: 16 bits
- HART support: HART 5, 6, 7 protocol versions, one modem per channel
- Isolation: 250 V continuous, reinforced insulation, inputs to backplane
- Current draw: 300 mA @ 5.1 V DC, 155 mA @ 24 V DC
- Power dissipation: 5.3 W
- Conformal coating: Yes, for corrosive environments
Why Choose This
- Conformal coating protects against moisture, dust, and corrosive atmospheres
- Individually isolated channels prevent ground loop interference between field devices
- Built-in HART modems eliminate external multiplexers or clip-on devices
- Open wire detection and broken wire diagnostics on 4-20 mA loops
- Removal and insertion under power (RIUP) for maintenance without shutdown
Common Questions
- What is the difference between IF16IHK and IF16HK? The IF16IHK has individually isolated channels; the IF16HK has group-isolated channels.
- How many HART devices can it communicate with? All 16 channels support simultaneous HART communication at 1200 baud.
- Which terminal blocks are compatible? The 1756-TBCH (36-pin screw) or 1756-TBS6H (36-pin spring) removable terminal blocks.
Mounting Steps
- Power down the ControlLogix chassis before installation.
- Insert the module into any available 1756 slot and press firmly until seated.
- Attach the 1756-TBCH or 1756-TBS6H removable terminal block.
- Wire field devices using shielded twisted-pair cable, grounding shields at one end.
- Configure the module in Studio 5000 Logix Designer and verify channel status LEDs.
Buying Advice
- Select the 1756-IF16IHK for applications requiring channel-to-channel isolation in corrosive environments.
- For non-isolated HART inputs, choose the 1756-IF16HK instead.
- Verify the chassis power supply budget: 300 mA at 5.1 V DC per module.