Name: PC-E984-258 Modicon 984 CPU | PC-E984-258 Schneider Electric Controller
SKU: PC-E984-258
Price: 266.00 USD
Availability: InStock

Product details

PC-E984-258 | Schneider Electric Modicon 984 CPU

The PC-E984-258 is a CPU for Schneider Electric Modicon systems. It handles automation tasks with steady speed. Total memory reaches 512 KB. Data memory sits at 32k. It manages 1920 registers. Two Modbus ports link to other devices. Local I/O holds 256 points. Total I/O reaches 512 in and 512 out. One I/O drop and up to four racks expand the setup. Scan time runs at 2.5 ms per kilobyte of code. The unit weighs 1.36 kg. It fits compact 984 controller slots. This CPU suits legacy lines that need a trusted brain. It is also a smart spare for aging panels.

Technical Data

Brand: Schneider Electric
Model: PC-E984-258
Series: Modicon
Type: CPU
Category: 18131-COMPACT 984 CONTROLLERS
GTIN: 3595860001122
Total memory: 512 KB
Data memory: 32k
Registers: 1920
Scan time: 2.5 ms/k
Communication ports: 2 Modbus
Local I/O: 256
Total I/O: 512 in / 512 out
I/O drops: 1
Maximum racks: 4
Weight: 3.00 lb (1.36 kg)
Discount schedule: PC19
Returnability: No
Country of origin: DE

Core Performance Details

Measurement range: Not applicable for this CPU
Frequency response: Not applicable for this logic unit
Sensitivity: Not applicable for this controller
Linearity: Not applicable for this digital module
Resolution: Set by the installed I/O cards
Temperature range: Not listed in the source data
Environmental tolerance: For clean cabinet use
Noise immunity: Built for factory floor control

Installation Guide

Fit the CPU into a Compact 984 rack slot.
Check rack count, the limit is four.
Use one I/O drop for remote points.
Wire both Modbus ports for device links.
Keep local I/O at 256 points or less.
Stay within 512 in and 512 out total.
Keep the unit inside a clean panel.

Setup and Service Ease

Swap the CPU without rebuilding the rack.
Label Modbus cables before service work.
Keep a spare unit for fast line recovery.
Check rack and drop wiring each year.
Confirm the GTIN on the label.

Compatibility Notes

Fits Modicon Compact 984 controller systems.
Talks Modbus over two ports.
Works with up to four racks.
Supports one I/O drop.
Check your rack type before you buy.

Certifications and Compliance

Certification data is not listed in the source.
Confirm local EMC and electrical rules before use.
Use original Schneider Electric docs for final approval.

Package Contents

1 x Schneider Electric PC-E984-258 CPU
Protective packaging for safe transport
Order confirmation and commercial invoice

Warranty and Shipping

Warranty: 12 months
Dispatch: 12 to 24 hours after order confirmation
Couriers: FedEx, UPS, DHL
Tracking: Shared after shipment

Expert Review

The PC-E984-258 is a solid brain for older Modicon lines. The 512 KB memory and 32k data space fit mid-size programs. It handles 1920 registers with ease. Two Modbus ports cut extra hardware needs. A 2.5 ms/k scan time keeps logic fast enough for most cells. The 256 local I/O points cover small panels. Four racks and one drop add room to grow. The 1.36 kg body is easy to handle. The main limit is age. Stock a spare before a failure stops the line.

Manager’s Insight

This CPU is a downtime saver. One spare on the shelf can restart a line in hours. The 12-month warranty and 12 to 24 hour dispatch cut risk. FedEx, UPS, and DHL keep delivery tight. Two Modbus ports mean less add-on gear. The four-rack limit sets your growth plan. Buy two units if the line runs hard. One sits in the panel, one sits in the store. That plan beats a long repair wait every time.

Best Suited Equipment and Applications

Legacy Modicon Compact 984 panels
Assembly and packaging cells
Material handling lines
Small process skids
Modbus device networks
Factory retrofit and spare parts programs

Buying Guide

Confirm your rack fits a Compact 984 CPU.
Count your I/O points, the cap is 512 in and out.
Check local I/O needs, the limit is 256.
Plan rack count, the max is four.
Verify Modbus devices match the two ports.
Order a spare because the line may be old.

FAQ

What memory does this CPU hold?
It holds 512 KB total and 32k data memory.
How many registers can it manage?
It manages up to 1920 registers.
How fast is the scan time?
It runs at 2.5 ms per kilobyte of code.
How many Modbus ports does it have?
It has two Modbus ports.
What is the local I/O limit?
It supports 256 local I/O points.
How many racks can it use?
It works with up to four racks.
What is the warranty?
It comes with a 12-month warranty.
How fast do you ship?
Orders leave within 12 to 24 hours.
Which couriers do you use?
We ship by FedEx, UPS, and DHL.
Do you have hands-on experience with it?
Yes. Our team supports Modicon users every day.
Can you check fit before I order?
Yes. Send your rack model and we will confirm.
What should I check first?
Confirm your rack, I/O count, registers, and port needs.
Should I buy a spare?
Yes. One spare unit can save a full shift.
Can I get help choosing a part?
Yes. Contact us before you buy.