Allen-Bradley 1771-A3B1 PLC-5 I/O Chassis

Product Description

Configured for high-density I/O and processor integration within PLC-5 network platforms, the Allen-Bradley 1771-A3B1 (1771-A3B1 Universal Backplane Chassis) provides direct physical mounting and electrical backplane execution.

Suffix Breakdown & Model Matrix

The 1771-A3B1 designates a specific 12-slot physical enclosure configuration within the Allen-Bradley PLC-5 architecture. Users can cross-reference the base model and suffix variations using the following structural breakdown:

• 1771: Denotes the Allen-Bradley standard industrial I/O and chassis hardware product family.
• A: Identifies the chassis category within the hardware classification system.
• 3: Signifies the structural generation and chassis series size.
• B1: Denotes the specific revision and backplane power distribution layout variant for universal module compatibility.

Hardware Specifications

Profinet / EtherNet/IP Deterministic Networks & Backplane Communication

The universal backplane of the Allen-Bradley 1771-A3B1 routes high-speed deterministic data streams across its 12 slot connections. Furthermore, system integrators interface the PLC-5 processor family via deterministic communication modules to bridge legacy backplane traffic into modern industrial networks. Additionally, backplane bus communication velocity metrics depend heavily on the installed processor card and the specific communication adapter modules deployed in the adjacent rack slots. Moreover, firm backplane trace routing minimizes electrical noise interference, ensuring that high-speed signal updates across digital and analog modules maintain data integrity without packet loss or jitter.

Frequently Asked Questions (FAQ)

• Q: Can modules be inserted or removed while the 1771-A3B1 chassis is powered on?

  A: No, standard PLC-5 hardware does not support hot-swapping. Technicians must disconnect system power before installing or extracting any module to prevent backplane bus damage or electrical arcing.

• Q: How does the chassis distribute operating power to installed I/O modules?

  A: A compatible 1771 series power supply mounts directly to the designated power slot or end-bracket of the chassis, subsequently routing low-voltage DC power through the universal backplane traces.

• Q: What determines the maximum current draw allowable on the backplane?

  A: The total current draw is strictly limited by the capacity of the attached 1771 power supply unit and the power budget specifications outlined in the system design manual.

Field Installation Guidelines

Mount the Allen-Bradley 1771-A3B1 chassis securely to a grounded vertical panel using all designated mounting holes to ensure structural rigidity and vibration resistance in harsh industrial environments. Maintain adequate clearance above and below the chassis enclosure to facilitate proper thermal dissipation within the specified operating temperature range. Connect the chassis ground terminal directly to the central plant earth ground bus using low-impedance copper braided wire to minimize electromagnetic interference across the backplane bus. Finally, verify that all module retaining latches engage fully with the chassis frame before applying primary power to the system.

Other Attributes

• Series: Allen Bradley PLC-5
• Country of Origin:  USA
• Lead Time: In Stock, 2 Working Days

In Stock Hot Items of Allen Bradley

Our Competitive Brands

• - ABB Advant-800xA，Advant OCS，Bailey Infi 90 and Net 90，H&B Freelance 2000，DSQC Robots，IGCT / IGBT
• - GE General Electric Field Control, Genius I/O, QuickPanel, RX3i PacSystem, Series 90, Series 90, Series VersaMax
• - Allen Bradley Allen-Bradley SLC500, MicroLogix, CompactLogix, ControlLogix, PLC-5, Panel View,
• - Bently Nevada 3300 System, 3500 System
• - Honeywell 7800 Series, FSC, IPC, Mxopen, TDC 2000, TDC 3000, Experion PKS(C200,C300)
• - Yokogawa Centum CS - Centum VP, Centum XL - micro XL, FA-M3, ProSafe-PLC
• - Ovation, Foxboro, EPRO, Emerson DeltaV, Fuji, Siemens, HIMA, Prosoft, Invensys Triconex, ICS TRIPLEX, Woodward, Bachmann, Schneider

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Question 1: Is Our Price Competitive?

NEW-GEN collaborates with over 50 countries worldwide. As a leading supplier in China, we can provide significant discounts to customers based on market demand.

Question 2: What Is The Warranty Period?

We offer a standard one-year warranty for all new and original items.

Question 3: What Payment Methods Do We Accept?

We accept 100% T/T (Telegraphic Transfer) before shipping. For items with a lead time, a 30% deposit is required in advance, with the remaining 70% balance due before shipping. If you have an agent in China, please contact us for RMB transfer.

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We primarily utilize carriers such as FedEx, DHL, UPS, BRE, etc. If you have an account with any of these carriers, you can arrange the shipping yourself. Additionally, we offer free shipping to China freight forwarders.

Question 5: What Is Our Delivery Time?

Typically, delivery takes around 1-3 days after receiving the advance payment. For items with a quoted lead time, delivery will occur as per the specified lead time.

Question 6: How Do We Package The Goods?

Our packaging process involves multiple layers of protection. Initially, the product is placed in its original box, sealed with a label. Then, we add a layer of bubble wrap to safeguard against collisions during transportation. Finally, all products are securely packed in sturdy boxes for further protection.

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