Product Procurement & Buyer Guide
1762‑L24BWA delivers a 24‑point compact controller for tight‑space installations. Its integral power supply accepts 120–240 VAC input and dissipates only 15.7 W. This reduces cabinet cooling costs and simplifies panel layout.
The unit provides fourteen 24 VDC digital inputs that support sink/source wiring. Four of these inputs are rated as “fast” for high‑speed counting. This flexibility eliminates external signal conditioning for common sensor types.
Ten relay outputs handle loads up to 10 A with a mechanical life of 20,000,000 cycles. Such longevity reduces spare‑part inventory and unplanned downtime in conveyor or packaging lines.
The built‑in 8‑pin mini‑DIN RS232 port supports DH485, DF1, Modbus Master/Slave, and ASCII protocols. Peer‑to‑peer or networked architectures are possible without extra interface cards. For isolated networks, use the 1761‑NET‑AIC converter.
Expansion I/O modules plug directly into the controller. Always disconnect power before inserting or removing modules to avoid arcing damage. This practice extends connector life and system reliability.
Expert Technical Evaluation & Performance Review
The 1762‑L24BWA operates reliably from 0 °C to 55 °C with a heat dissipation of 15.7 W. Its relay outputs transition cleanly over 20 million cycles, making them suitable for moderate‑frequency switching.
Input circuit type is sink/source 24 VDC with a response fast enough for four dedicated high‑speed counters. This allows precise timing for incremental encoder or proximity sensor signals.
The integrated RS232 port supports DH485 for networked architectures and DF1 for peer‑to‑peer transactions. Modbus Master/Slave enables communication with HMIs or SCADA systems. ASCII mode handles direct interaction with smart devices.
Mounting options include DIN rail or direct panel using provided slots. The compact dimensions (90 mm × 110 mm × 87 mm) and 2‑lb weight simplify retrofits in crowded enclosures.
Two onboard potentiometers allow analog simulation without external signal generators. This feature aids in‑field testing of control logic during commissioning.
The controller meets EMC directives 89/336/EEC, ensuring minimal electromagnetic interference in industrial environments. A master control relay provides emergency shutdown for personnel safety.
Logistics & Standard Packaging Details
- One Allen‑Bradley 1762‑L24BWA MicroLogix 1200 PLC
- Mounting brackets and DIN‑rail clip
- Removable screw‑type terminal blocks for I/O wiring
- Quick‑start reference guide (paper copy)
- Product documentation CD (PDF manuals)
- Express shipping available via FedEx, UPS, and DHL
