PC-E984-285 Modicon Processor Module – Schneider 984 CPU Fast Shipping

PC-E984-285 Modicon CPU – 32k Logic, 64k Data, Modbus & Modbus+

PC-E984-285 is a CPU from the Schneider Electric Modicon series. It handles industrial processing and communication. This unit offers 32k logic memory. It also provides 64k data memory. Therefore, it suits demanding control tasks.

• Model: PC-E984-285
• Brand: Schneider Electric
• Series: Modicon
• Type: CPU processor module
• Weight: 3.00 lbs (1.36 kg)

Memory and Processing

• Logic Memory
  • 32k
• Data Memory
  • 64k
• Registers
  • 1,920
• Scan Time
  • 2.5 ms per kilobyte

Communication and I/O

• Ports
  • 2 x Modbus
  • 1 x Modbus+
• Local I/O
  • 256 points
• Total I/O
  • 512 inputs / 512 outputs
• I/O Drops
  • 1
• Maximum Racks
  • 4

Expert Review

The PC-E984-285 is a classic Modicon CPU. It gives you two Modbus ports plus Modbus+. That mix covers most legacy networks. The 32k logic and 64k data handle mid-size programs. Scan time is quick at 2.5 ms/k. So response stays tight. The 1,920 registers give room for data handling. Local I/O reaches 256 points. Total I/O doubles to 512/512. One I/O drop and four racks add layout options. This CPU is not for new high-speed lines. But for existing 984 racks, it is a strong spare. Buy it if you need a drop-in replacement.

Manager’s Insight

Most buyers need this CPU to keep old lines alive. They do not want a full migration. The PC-E984-285 fits that need. Modbus+ support is the key selling point. It connects to older networks without adapters. We see steady demand from water plants and mills. The common mistake is buying the wrong memory size. Check your program size first. Buy one spare if your line runs 24/7. Downtime costs more than the module.

Best Fit Devices and Applications

• Modicon 984 PLC racks
• Legacy process control lines
• Water and wastewater plants
• Pulp and paper mills
• Modbus and Modbus+ networks
• Mid-size automation cells
• Panel upgrades with existing I/O

FAQ

Q: Can this CPU run a modern HMI?

A: Yes. It talks over Modbus. Most HMIs support that protocol.

Q: How much program space do I really get?

A: You get 32k logic. That suits mid-size ladder programs.

Q: What if I only need one serial port?

A: You still get two Modbus ports. The extra port adds flexibility.

Q: Does it support remote I/O?

A: Yes. It handles one I/O drop and up to four racks.

Q: What warranty and shipping do you offer?

A: We include a 12-month warranty. Ships in 12–24 hours via FedEx, UPS, or DHL.

Compare with Similar Models

• PC-E984-285 – 32k logic, 64k data, Modbus+
• PC-E984-265 – lower memory, basic Modbus
• PC-E984-385 – larger memory, more I/O
• PC-E984-685 – high-end 984 CPU

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