SLC 500 Series 1747-L542 Controller | Processor Module

Allen-Bradley 1747-L542 SLC 5/04 Programmable Controller

• Brand & Model: This is an Allen-Bradley controller, specifically the 1747-L542 model from the SLC 5/04 series.
• Enhanced Memory: It features 32 KB (32,000 words) of battery-backed user memory. This includes 28K for program/data and 4K dedicated to data storage.
• Network Communication: Built-in Data Highway Plus (DH+) and 9-pin RS-232 ports enable high-speed messaging. These ports support connections to HMIs, SCADA, and other PLCs.
• I/O System Capacity: The controller supports a maximum of 4096 discrete inputs and 4096 discrete outputs. It can also handle up to 480 local analog I/O points.
• Processing Speed: It delivers a fast 0.37 ms bit execution time. The system offers a 0.225 ms I/O scan time and a 0.9 ms/K program scan.
• Hardware & Power: Install the processor in slot 0 of any compatible SLC chassis. It requires 1 A at 5V DC and 175 mA at 24V DC from the backplane.
• Environmental Robustness: The unit operates in a 0 to 60°C (32-140°F) temperature range. It withstands 30G operating shock and 5-95% non-condensing humidity.
• Backup & Indicators: It uses a 1747-BA battery and 1747-M13 Flash memory. Front-panel LEDs for RUN, FAULT, DH+, and RS-232 provide clear diagnostics.

Frequently Asked Questions (FAQ)

• Q: What is the key difference between the 1747-L541 and 1747-L542?
  A: The 1747-L542 offers 32K words of user memory, while the L541 model provides 16K words for smaller applications.
• Q: What chassis is compatible with this SLC 5/04 processor?
  A: It installs in slot 0 of any standard SLC 500 chassis, such as the 1746-A2, A7, A10, or A13 models.
• Q: Can this processor communicate with modern ControlLogix systems?
  A: Yes, it supports messaging and pass-through communication to ControlLogix and CompactLogix platforms via DH+.
• Q: What is the bit instruction execution time?
  A: The processor executes bit instructions in a fast 0.37 milliseconds for responsive control.
• Q: Do you offer a return policy?
  A: Yes, we support a 30-day return policy for your confidence and satisfaction.

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