PC-A984-145 Schneider Modicon CPU – 8k Memory, Modbus+ | Fast Dispatch

PC-A984-145 – Schneider Modicon CPU Module

Need a reliable brain for your Modicon system? The PC-A984-145 from Schneider Electric is a proven CPU module. It packs 8k of user memory. It also handles 1920 registers. Scan speed hits 5 ms per k. You get one Modbus port and one Modbus+ port. This module supports up to 4 racks. It manages 512 inputs and 512 outputs total. Great for legacy systems that need a quick fix. We stock tested units. Order now and keep your line moving.

Technical Data – Simple Tree View

• Brand: Schneider Electric
  • Model: PC-A984-145
  • Series: Modicon
    • Type: CPU Module
• Memory:
  • User Memory: 8k
  • Data Memory: 2k
  • Registers: 1920
• Speed:
  • Scan Time: 5 ms/k
• Ports:
  • 1 Modbus
  • 1 Modbus+
• I/O Capacity:
  • Local I/O: 256
  • Total I/O: 512 inputs / 512 outputs
  • Local Drops: 1
  • Max Racks: 4
• Weight: 3.00 lbs (1.36 kg)

Expert Review – Manager’s Insight

This CPU is a classic. However, the PC-A984-145 does not need fancy software. It just works. The 8k memory is small by today’s standards. But for old Modicon racks, it is plenty. Meanwhile, the Modbus+ port is the star here. It lets you network fast without extra cards. The scan time of 5 ms/k is decent for discrete logic. I like the 4-rack support. Therefore, you can expand without buying a new CPU. The downside? It is old. Spares are limited. If you run a legacy line, buy two. Keep one on the shelf. The setup is simple. Plug it in, set addresses, and go. For maintenance teams, this is a lifesaver.

Best Applications and Equipment

• Legacy Modicon PLC racks. Replaces failed CPUs.
• Discrete manufacturing lines. Controls relays, sensors, and motors.
• Process panels. Reads switches and drives alarms.
• Water treatment plants. Runs pumps and valves.
• Material handling. Sorts and moves boxes.
• Packaging machines. Handles simple logic and timing.

Frequently Asked Questions

Q: Can I still buy the PC-A984-145?

A: Yes. We stock tested surplus and refurbished units. Check stock before ordering.

Q: Does this CPU work with any Modicon rack?

A: It fits Modicon 984 racks. It supports up to 4 racks. Check your backplane type first.

Q: What is the scan time?

A: 5 milliseconds per kilobyte. This is fast enough for most discrete control.

Q: How many I/O points can I connect?

A: 256 local. 512 inputs and 512 outputs total across the system.

Q: Is the warranty included?

A: Yes. 12 months from delivery. Covers defects. Does not cover misuse.

Q: How fast do you ship?

A: We ship in 12 to 24 hours. FedEx, UPS, DHL. Tracking number provided.

Q: Do you offer bulk pricing?

A: Yes. Email sales@powergearx.com or WhatsApp +86 18030005825.

Buying Guide

• Check your old CPU label. Look for PC-A984-145.
• Count your racks. You need 4 or fewer.
• Confirm your I/O count. Stay under 512 inputs and 512 outputs.
• Verify you have Modbus or Modbus+ devices. This CPU supports both.
• Order a spare. Legacy parts run out fast.
• Need help? Email sales@powergearx.com or WhatsApp +86 18030005825.

Compare With Similar Models

• PC-A984-145 – 8k memory, 1920 registers, 1 Modbus+ port.
• PC-A984-140 – Smaller memory. Fewer registers. Check specs before buying.
• PC-A984-150 – More memory. Higher cost. Better for complex logic.
• PC-A984-120 – Older model. Limited I/O. Not for large racks.

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