Product Details
The ABB DI 724F, also cataloged as the DI 724F Digital Input Module, operates as a dedicated hardware component for discrete signal acquisition within S700 network platforms.
Hardware Specifications
| Parameter | Specification |
| Model | DI 724F (Article Number: 3BDH000374R0005) |
| Brand | ABB |
| Origin | Germany |
| Weight | 105 g |
| Dimensions | 67.5 mm x 76 mm x 54 mm |
| Operating Temp | 0 to +60 deg C (Standard industrial parameter) |
| Power Consumption | 6 W maximum power dissipation |
| Current Consumption | 0.15 A at +24 VDC external |
| Number of Channels | 32 channels |
| Input Voltage Range, "0" | -30 V to +5 V |
| Input Voltage Range, "1" | +13 V to +30 V |
| Common Mode Voltage Input | 24 VDC |
| Maximum Field Cable Length | 1000 m (shielded), 600 m (unshielded) |
| HART Support | No |
| SOE Support | No |
| Redundancy | No |
| Diagnostics | 40 front LEDs (yellow status per channel, error indicators) |
I/O Density Scaling and Deterministic Processing
The hardware layout provides high-density processing through 32 non-redundant discrete channels mapped across an S700 form factor. This high I/O density scaling allows parallel state evaluation of up to 32 independent field sensors without overloading backplane bus communication velocity. The logical interpretation transitions deterministically between standard logic 0 and logic 1 threshold windows, ensuring real-time digital pattern updates to the central controller while maintaining absolute firmware flash compatibility with the host S700 rack assembly.
Frequently Asked Questions
Q: How does the module indicate channel-level electrical states and diagnostics?
A: The front panel contains 40 LEDs. Each of the 32 channels possesses a dedicated yellow LED that illuminates when the input voltage transitions into the high logic state (+13 V to +30 V). Additional indicators monitor module error states.
Q: What are the cable length limitations when running unshielded field wiring?
A: Unshielded lines are limited to a maximum length of 600 m to prevent electromagnetic interference from inducing signal transitions. Shielded lines allow runs up to 1000 m.
Q: Can this module process high-speed Sequence of Events (SOE) time-stamping?
A: No, the DI724F hardware architecture does not support internal SOE latching logic or HART pass-through communications.
Field Installation Guidelines
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DIN Rail Grounding: Ensure the S700 bus terminal base is snapped firmly onto a grounded 35 mm DIN rail. Continuous metal contact is necessary to sink high-frequency noise through the chassis path.
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Shield Termination: For field runs exceeding 600 m, shielded cables are mandatory. Connect the cable shields to the central cabinet earth bar prior to terminating individual conductors at the module block.
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Power Separation: Route the +24 VDC external supply wires away from heavy AC power switching lines within the wire trays to minimize inductive voltage cross-talk.
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Ventilation Clearances: Maintain the standard 10 mm lateral separation from adjacent modules to maximize passive convection through the 67.5 mm wide enclosure framework.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
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