CODESYS VS Function Block Diagram
As of 30 October 2026, Function Block Diagram is named by 107 companies and CODESYS by 250; CODESYS skews to companies under 200 people (49% vs 32%), Function Block Diagram to companies over 1,000 (48% vs 31%).
As of 30 October 2026 · refreshed daily · counts move as websites, DNS and career sites are re-read.
The website-and-DNS footprint is not comparable between a marketing suite and a CRM: CODESYS's script and mail records show on hundreds of thousands of small sites, Function Block Diagram rarely leaves a trace outside its own apps. Compare on the job-posting numbers; use the footprint for reach.
- CODESYS: 2–200 employees
- 49%
- Function Block Diagram: 2–200 employees
- 32%
- CODESYS: 1,000+ employees
- 31%
- Function Block Diagram: 1,000+ employees
- 48%
- Postings per company, 90 days
- 1.9 · 1.8
- Website or DNS footprint
- 0 · 0
Who chooses which
Share of each tool's companies in every segment. "Leans" marks a gap of more than two points.
| Segment | CODESYS | share | Function Block Diagram | share | Leans |
|---|---|---|---|---|---|
| 2-10 employees | 17 | 7% | 9 | 8% | even |
| 11-50 employees | 47 | 19% | 10 | 9% | CODESYS |
| 51-200 employees | 58 | 23% | 15 | 14% | CODESYS |
| 201-500 employees | 30 | 12% | 13 | 12% | even |
| 501-1000 employees | 21 | 8% | 8 | 7% | even |
| 1001-5000 employees | 34 | 14% | 16 | 15% | even |
| 5001-10000 employees | 13 | 5% | 9 | 8% | Function Block Diagram |
| 10,001+ employees | 30 | 12% | 26 | 24% | Function Block Diagram |
| Self-employed | – | – | 1 | 1% | outside top 12 |
| Segment | CODESYS | share | Function Block Diagram | share | Leans |
|---|---|---|---|---|---|
| Manufacturing & industry | 153 | 61% | 65 | 61% | even |
| Business & finance services | 19 | 8% | 7 | 7% | even |
| Utilities & infrastructure | 15 | 6% | 7 | 7% | even |
| Property & construction | 12 | 5% | 6 | 6% | even |
| Commerce & trade | 11 | 4% | 3 | 3% | even |
| Technology & software | 11 | 4% | 7 | 7% | Function Block Diagram |
| Automotive | 9 | 4% | 5 | 5% | even |
| Public, community & associations | 6 | 2% | 2 | 2% | even |
| Transport, logistics & rental | 6 | 2% | 1 | 1% | even |
| Media & content | 5 | 2% | 2 | 2% | even |
| Consumer services & leisure | 2 | 1% | 1 | 1% | even |
| Agriculture & forestry | 1 | 0% | – | – | outside top 12 |
| Hospitality & travel | – | – | 1 | 1% | outside top 12 |
| Segment | CODESYS | share | Function Block Diagram | share | Leans |
|---|---|---|---|---|---|
| Germany | 99 | 40% | 9 | 8% | CODESYS |
| United States | 73 | 29% | 56 | 52% | Function Block Diagram |
| Netherlands | 15 | 6% | 3 | 3% | CODESYS |
| France | 11 | 4% | 2 | 2% | CODESYS |
| United Kingdom | 11 | 4% | 8 | 7% | Function Block Diagram |
| Austria | 6 | 2% | 1 | 1% | even |
| Canada | 5 | 2% | 4 | 4% | even |
| Sweden | 4 | 2% | – | – | outside top 12 |
| Switzerland | 3 | 1% | – | – | outside top 12 |
| Italy | 3 | 1% | – | – | outside top 12 |
| Bulgaria | 2 | 1% | 1 | 1% | even |
| Czechia | 2 | 1% | – | – | outside top 12 |
| Poland | – | – | 4 | 4% | outside top 12 |
| India | – | – | 3 | 3% | outside top 12 |
| Australia | – | – | 2 | 2% | outside top 12 |
| Belgium | – | – | 2 | 2% | outside top 12 |
| Segment | CODESYS | share | Function Block Diagram | share | Leans |
|---|---|---|---|---|---|
| Engineering (non-software) | 399 | 61% | 135 | 54% | CODESYS |
| Skilled trades and field service | 76 | 12% | 30 | 12% | even |
| Software engineering | 72 | 11% | 28 | 11% | even |
| Sales | 9 | 1% | 2 | 1% | even |
| Unclassified | 7 | 1% | 5 | 2% | even |
| Product, program & project management | 5 | 1% | – | – | outside top 12 |
| Customer service & success | 3 | 0% | 1 | 0% | even |
| IT operations & business systems | 3 | 0% | 4 | 2% | even |
| Construction and civil | 2 | 0% | – | – | outside top 12 |
| Data & AI | 2 | 0% | 1 | 0% | even |
| Education & training | 2 | 0% | – | – | outside top 12 |
| Quality, safety & environment | 1 | 0% | 3 | 1% | even |
| Agriculture and environment | – | – | 2 | 1% | outside top 12 |
| Hospitality and food service | – | – | 1 | 0% | outside top 12 |
| Manufacturing and production | – | – | 1 | 0% | outside top 12 |
The companies behind each column
Companies using CODESYS →
Companies using Function Block Diagram →
plc programming ranked →
Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.
Function Block Diagram is named by 107 companies in job postings and CODESYS by 250; 14 name both. (Breaknorm, 30 October 2026, https://breaknorm.co/compare/codesys-vs-function-block-diagram)
Read from the source, not self-reported
Every number on this page can be traced to a page we crawled or a posting we read. Full methodology →
- Job postingsRead hourly from career sites. A tool counts when the employer's own text names it as the team's system; both tools can count for one company.
- Website and DNSScripts and embeds on the company's pages, plus SPF, DKIM, MX and CNAME records of its domain that point at the vendor.
- SegmentsCountry, size and industry from the company profile built from its website.
- Not a reviewNo ratings, prices or feature claims. For those, read the vendors.
CODESYS vs Function Block Diagram: questions
Which is more used, CODESYS or Function Block Diagram?
By companies naming it in their own job postings, CODESYS (250) over Function Block Diagram (107). By website-and-DNS footprint, Function Block Diagram (0 vs 0), because its scripts and mail records sit on many small company sites.
Who chooses CODESYS?
49% of CODESYS companies have 2 to 200 employees, against 32% for Function Block Diagram. 31% of CODESYS companies have over 1,000 employees, against 48% for Function Block Diagram.
Do companies run both?
14 companies name both in their postings, usually CODESYS in marketing and Function Block Diagram in sales, or during a migration.
Where do these numbers come from?
From the employer's own text in job postings read hourly from career sites, and from scripts found on company websites in our crawl. No vendor data, no surveys.
Get either list your way
The same data as a search, over MCP and the API, as bulk files, or pushed to you as it changes.
Every company on either tool,
with the person who owns it
Filter on CODESYS or Function Block Diagram. Start free, no card.