Function Block Diagram VS Ladder Logic
As of 30 October 2026, Ladder Logic is named by 276 companies and Function Block Diagram by 107; Function Block Diagram skews to companies under 200 people (32% vs 25%), Ladder Logic to companies over 1,000 (55% vs 48%).
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: Function Block Diagram's script and mail records show on hundreds of thousands of small sites, Ladder Logic rarely leaves a trace outside its own apps. Compare on the job-posting numbers; use the footprint for reach.
- Function Block Diagram: 2–200 employees
- 32%
- Ladder Logic: 2–200 employees
- 25%
- Function Block Diagram: 1,000+ employees
- 48%
- Ladder Logic: 1,000+ employees
- 55%
- Postings per company, 90 days
- 1.8 · 2.3
- 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 | Function Block Diagram | share | Ladder Logic | share | Leans |
|---|---|---|---|---|---|
| Self-employed | 1 | 1% | 2 | 1% | even |
| 2-10 employees | 9 | 8% | 14 | 5% | Function Block Diagram |
| 11-50 employees | 10 | 9% | 18 | 7% | Function Block Diagram |
| 51-200 employees | 15 | 14% | 37 | 13% | even |
| 201-500 employees | 13 | 12% | 31 | 11% | even |
| 501-1000 employees | 8 | 7% | 23 | 8% | even |
| 1001-5000 employees | 16 | 15% | 61 | 22% | Ladder Logic |
| 5001-10000 employees | 9 | 8% | 23 | 8% | even |
| 10,001+ employees | 26 | 24% | 67 | 24% | even |
| Segment | Function Block Diagram | share | Ladder Logic | share | Leans |
|---|---|---|---|---|---|
| Manufacturing & industry | 65 | 61% | 160 | 58% | Function Block Diagram |
| Business & finance services | 7 | 7% | 18 | 7% | even |
| Technology & software | 7 | 7% | 13 | 5% | even |
| Utilities & infrastructure | 7 | 7% | 14 | 5% | even |
| Property & construction | 6 | 6% | 13 | 5% | even |
| Automotive | 5 | 5% | 26 | 9% | Ladder Logic |
| Commerce & trade | 3 | 3% | 15 | 5% | Ladder Logic |
| Public, community & associations | 2 | 2% | 2 | 1% | even |
| Media & content | 2 | 2% | – | – | outside top 12 |
| Consumer services & leisure | 1 | 1% | 4 | 1% | even |
| Hospitality & travel | 1 | 1% | – | – | outside top 12 |
| Transport, logistics & rental | 1 | 1% | 4 | 1% | even |
| Agriculture & forestry | – | – | 3 | 1% | outside top 12 |
| Health care | – | – | 2 | 1% | outside top 12 |
| Segment | Function Block Diagram | share | Ladder Logic | share | Leans |
|---|---|---|---|---|---|
| United States | 56 | 52% | 179 | 65% | Ladder Logic |
| Germany | 9 | 8% | 12 | 4% | Function Block Diagram |
| United Kingdom | 8 | 7% | 11 | 4% | Function Block Diagram |
| Canada | 4 | 4% | 16 | 6% | Ladder Logic |
| Poland | 4 | 4% | – | – | outside top 12 |
| India | 3 | 3% | 5 | 2% | even |
| Netherlands | 3 | 3% | 3 | 1% | even |
| Australia | 2 | 2% | 3 | 1% | even |
| Belgium | 2 | 2% | 3 | 1% | even |
| France | 2 | 2% | 14 | 5% | Ladder Logic |
| Austria | 1 | 1% | 2 | 1% | even |
| Bulgaria | 1 | 1% | – | – | outside top 12 |
| Italy | – | – | 7 | 3% | outside top 12 |
| Spain | – | – | 3 | 1% | outside top 12 |
| Segment | Function Block Diagram | share | Ladder Logic | share | Leans |
|---|---|---|---|---|---|
| Engineering (non-software) | 135 | 54% | 487 | 60% | Ladder Logic |
| Skilled trades and field service | 30 | 12% | 163 | 20% | Ladder Logic |
| Software engineering | 28 | 11% | 56 | 7% | Function Block Diagram |
| Unclassified | 5 | 2% | – | – | outside top 12 |
| IT operations & business systems | 4 | 2% | 7 | 1% | even |
| Quality, safety & environment | 3 | 1% | – | – | outside top 12 |
| Agriculture and environment | 2 | 1% | – | – | outside top 12 |
| Sales | 2 | 1% | 11 | 1% | even |
| Customer service & success | 1 | 0% | 1 | 0% | even |
| Data & AI | 1 | 0% | 1 | 0% | even |
| Hospitality and food service | 1 | 0% | – | – | outside top 12 |
| Manufacturing and production | 1 | 0% | 2 | 0% | even |
| Product, program & project management | – | – | 7 | 1% | outside top 12 |
| Arts media and entertainment | – | – | 2 | 0% | outside top 12 |
| Construction and civil | – | – | 2 | 0% | outside top 12 |
| Education & training | – | – | 2 | 0% | outside top 12 |
The companies behind each column
Companies using Function Block Diagram →
Companies using Ladder Logic →
plc programming ranked →
Quote the sentence with the date and the link. The numbers change daily; the link always shows the current ones.
Ladder Logic is named by 276 companies in job postings and Function Block Diagram by 107; 89 name both. (Breaknorm, 30 October 2026, https://breaknorm.co/compare/function-block-diagram-vs-ladder-logic)
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.
Function Block Diagram vs Ladder Logic: questions
Which is more used, Function Block Diagram or Ladder Logic?
By companies naming it in their own job postings, Ladder Logic (276) over Function Block Diagram (107). By website-and-DNS footprint, Ladder Logic (0 vs 0), because its scripts and mail records sit on many small company sites.
Who chooses Function Block Diagram?
32% of Function Block Diagram companies have 2 to 200 employees, against 25% for Ladder Logic. 48% of Function Block Diagram companies have over 1,000 employees, against 55% for Ladder Logic.
Do companies run both?
89 companies name both in their postings, usually Function Block Diagram in marketing and Ladder Logic 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.
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with the person who owns it
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