Plex ERP alternative to Plex Manufacturing Cloud for small and mid sized plants that need the schedule fixed first
ProductionPlanning.ai is a Plex ERP alternative for small and mid sized manufacturers whose real problem is late orders, not a missing ERP. Plex, now the Plex Smart Manufacturing Platform from Rockwell Automation, is a cloud ERP, MES and quality system sold per user on a quote. ERP Research puts it at 120 to 250 USD per user a month with implementation from about 50,000 USD for a single plant and four to nine months of rollout. We do one job: load every machine against its real shifts and setups and show which orders will ship late, for a flat 149 USD per plant a month with unlimited users. The comparison below is honest, including where Plex is the better buy.
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Machine shop, This week's schedule, finite capacity per work center
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What Plex is, and who it is built for
Plex started in 1989 as an internal IT project at an automotive parts maker in Michigan, became Plex Systems, and was bought by Rockwell Automation in September 2021 for about 2.2 billion USD. At the time Rockwell said Plex had more than 700 customers. Today Rockwell sells it as the Plex Smart Manufacturing Platform, and the older name, Plex Manufacturing Cloud, is still what most buyers type into Google.
The platform is a set of cloud products on one database: ERP for orders, purchasing, inventory and accounting, a manufacturing execution system for the floor, a quality management system, supply chain planning, production monitoring and asset performance management. Rockwell also offers Finite Scheduler as a Plex integration for detailed, constraint aware scheduling. Plex's own site names aerospace, auto and tire, food and beverage, industrial manufacturing, plastics and rubber, and precision metalforming as its industries. In short, it is built to run a whole plant, and often several plants, from the shipping dock to the general ledger.
Why plants look for a Plex ERP alternative
Plex is a serious system with a loyal automotive base. Plants that start pricing something else usually hit one of these first.
- The price is a quote. Rockwell publishes no Plex price list. ERP Research estimates 120 to 250 USD per user a month on a per user subscription, with better rates for longer commitments and more users
- Implementation is a project. ERP Research puts it at 50,000 USD for a single plant and 600,000 USD or more for multi plant enterprises, over four to nine months
- It is built for bigger plants. ERP Research's typical total cost of ownership runs 100,000 to 600,000 USD, which is a budget a 25 person shop rarely has for one problem
- Detailed scheduling is its own product. Rockwell markets Finite Scheduler separately as a Plex integration, so ask whether it is in your quote or a second project
- Every person who needs the plan is a seat. Shift leads, setup techs and the person promising dates to customers each need a login to read the schedule
If your books, purchasing and quality already work and the hole is the weekly machine plan, the choice is not between two ERP systems. It is between a months long cloud ERP rollout and a schedule you can run this week.
What Plex costs, according to the people who track it
Rockwell does not publish Plex pricing, and the figures in circulation are third party estimates. Treat every line as a range to test on the sales call.
| Source | What it says about Plex pricing |
|---|---|
| ERP Research | Per user subscription, 120 to 250 USD per user a month, all modules included, support and maintenance included in the subscription |
| ERP Research, implementation | 50,000 USD for a single plant to 600,000 USD or more for multi plant enterprises, four to nine months |
| ERP Research, total cost | Typically 100,000 to 600,000 USD |
| ERP Research, cost drivers | Named users, number of plants, IoT and automation integration scope, data migration, multi plant phasing |
| Rockwell Automation | Demo request, quote after the call |
GetApp and CostBench show a starting price of 3,000 USD a month for the whole subscription, without a per user unit, which for 12 users works out to 250 USD a user, the top of ERP Research's range. Our Plex ERP pricing article lines up every estimate and works the three year cost for a 12 user plant. All the sources agree on the shape: the bill grows with every named user and every plant, and implementation is priced separately.
Plex vs ProductionPlanning.ai, side by side
| What matters | ProductionPlanning.ai | Plex |
|---|---|---|
| What it is | Finite capacity production scheduling software | Cloud ERP, MES and quality platform |
| Owner | Independent | Rockwell Automation, since 2021 |
| Pricing model | Flat per plant | Per named user subscription |
| Published price | Yes, on the pricing page | No, quote after a demo |
| Entry price | 149 USD per plant a month | Estimates from 120 USD per user a month |
| Users | Unlimited on every plan | Each user licensed |
| Finite capacity on every machine and shift | Yes, the whole product | Through Finite Scheduler, marketed as a Plex integration |
| Late order warnings with projected finish dates | Yes, for every open order | Through the scheduling and MES screens |
| MES, machine data and traceability | No | Yes, a core strength |
| Quality management | No | Yes |
| Accounting and purchasing | No, keep your books where they are | Yes, built in |
| Time to first schedule | An afternoon, from a spreadsheet import | After implementation, four to nine months per ERP Research |
| Best for | 5 to 60 person plants that ship late and keep their current systems | Automotive, food and metalforming plants replacing ERP, MES and quality with one cloud system |
Plex facts come from Rockwell's Plex pages, Rockwell's 2021 acquisition release and ERP Research. Our plans are on the pricing page.
What Plex would cost over three years
Take two plant sizes. The sketch uses ERP Research's per user range and its single plant implementation figure. It is arithmetic on estimates, not a Rockwell quote.
| Cost line | 10 users, low | 10 users, high | 25 users, high |
|---|---|---|---|
| Basis | 120 USD per user a month | 250 USD per user a month | 250 USD per user a month |
| Subscription per year | 14,400 USD | 30,000 USD | 75,000 USD |
| Implementation, one time | 50,000 USD | 50,000 USD | 50,000 USD |
| Three year total | 93,200 USD | 140,000 USD | 275,000 USD |
ProductionPlanning.ai for the same plant is 894 USD a year on Line or 2,574 USD on Plant, so 2,682 or 7,722 USD over three years, with every person on the floor included and no implementation fee.
The fair caveat is large. Plex money buys MES, quality, traceability, purchasing and the general ledger as well as planning. If you need all of that, comparing it with a scheduler on price is the wrong test. It only matters when the schedule is the part you are short of.
Where Plex is the better choice
We would rather you buy the right system than the wrong one from us. Choose Plex if any of these applies.
- You are an automotive, food or metalforming supplier and your customers expect lot traceability, quality records and EDI from one system
- You want the MES on the floor, machine data, quality and the books in one cloud database, and you are ready to retire what you run today
- You already run Rockwell automation on the floor and want production monitoring tied to the PLCs you have
- You run several plants and want one system across them, which is where Plex's volume pricing applies
- You have the budget and an internal owner for a rollout measured in months
For a supplier of 100 people or more replacing several disconnected systems, Plex is one of the established cloud choices.
Where a per plant scheduler wins
- A published price, 149 USD per plant a month on Line and 429 USD on Plant, monthly and cancellable, or six months' price for a year (50 percent off)
- Unlimited users, so every shift lead, operator and salesperson can see the plan without a seat count
- Finite capacity on every machine and shift, with holidays and maintenance windows, on every plan
- Setup times per product family and automatic grouping of similar jobs on Plant, so changeovers stop eating press and machine time
- Projected finish dates for every open order and the week's bottleneck named with the jobs it will make late
- Nothing to install, and live the same afternoon from a spreadsheet of open jobs and routings
- It sits next to what you already run, so QuickBooks, your current ERP and your quality system stay as they are
The clearest fit is a 5 to 60 person plant that has outgrown the whiteboard and does not want an ERP project to fix it. Stamping and fabrication shops can see how we handle setups on steel fabrication management software, and molders on our IQMS and DelmiaWorks alternative page. If Plex is one of several ERPs on your shortlist, the manufacturing ERP alternative page sets the others next to a scheduler, and our Epicor Kinetic pricing article works through the cost of the system most often quoted against Plex.
How to compare the two on your own jobs
1. Export open jobs and routings
Pull open jobs with part number, quantity and due date, and each operation with its work center, setup and run time, from your current system or the spreadsheet you schedule in today. A Plex demo and our import both start from this list.
2. Enter work centers and shifts
Add each press, machine or cell with the shifts it runs, holidays and planned maintenance. For a plant with 20 machines this takes about an hour, and it is what makes the schedule finite.
3. Run a week next to your current plan
Publish the schedule and compare the late order list and the bottleneck with what the floor sees today. Ask Rockwell to schedule the same jobs in the Plex demo, with Finite Scheduler if it is in the quote.
4. Decide what you are really buying
If the schedule is the only thing missing, a scheduler next to your books is the cheaper and faster fix. If MES, quality and accounting all need replacing, Plex belongs on the shortlist and the scheduler question is answered inside it.
Questions people ask before choosing Plex
What is the best alternative to Plex ERP?
It depends on why you are looking. For a whole cloud ERP, buyers compare Plex with Epicor Kinetic, NetSuite, Microsoft Dynamics 365, Acumatica and SYSPRO. If late orders are the problem and your books already work, a dedicated scheduler is the cheaper fix: ProductionPlanning.ai costs 149 USD per plant a month with unlimited users. Our best production scheduling software roundup compares eleven tools with real prices.
How much does Plex ERP cost?
Rockwell does not publish Plex pricing. ERP Research estimates a per user subscription of 120 to 250 USD a month with support included, implementation from 50,000 USD for a single plant, four to nine months of rollout and a typical total cost of 100,000 to 600,000 USD. Multi plant deals get volume pricing.
Who owns Plex Systems now?
Rockwell Automation. It completed the purchase of Plex Systems in September 2021 for about 2.2 billion USD, and now sells it as the Plex Smart Manufacturing Platform. Plex Manufacturing Cloud is the older name for the same product, so quotes and reviews use both.
Does Plex have production scheduling?
Yes. Plex covers MRP and supply chain planning, and Rockwell sells Finite Scheduler as a Plex integration for detailed scheduling against production constraints. Ask whether Finite Scheduler is in your quote, because it is marketed as its own product. ProductionPlanning.ai includes finite capacity scheduling on every plan.
Is Plex too big for a small manufacturer?
Often, if the plant only needs a schedule. Plex grew up in automotive suppliers and ERP Research's typical total cost starts around 100,000 USD. For a plant of 10 to 50 people whose books already work and whose problem is late orders, a per plant scheduler fixes that for 894 to 2,574 USD a year.
Can I keep Plex and add a scheduler?
Yes, if Plex's schedule is the part your planners work around in a spreadsheet. Export open jobs and routings, import them, and the board shows projected finish dates and the bottleneck. On Plant the schedule exports back to your ERP, and Group adds an API.
Fix the schedule this week, before you price a cloud ERP
Start on the Line plan at 149 USD a month with the whole plant included, or run the demo on a sample week of orders first. You will see your own bottleneck the same afternoon.
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