WPLSoft: Download, Pricing & System Requirements
Delta WPLSoft / ISPSoft is Delta's 5-language PLC programming environment supporting DVP-EH3, DVP-ES2, DVP-SS2 and more. Released 2002, latest update 2024-08.
In one minute
WPLSoft is best for cost-sensitive small machinery oems and educational institutions teaching plc fundamentals. Dominant in cost-sensitive Asian markets; growing in India and Latin America. Common in OEM machinery exported globally.. Adoption is medium-high (35% market share) across Asia-Pacific and China.
Capability profile
Six-axis score (0–100) based on pricing, learning curve, hardware support, adoption, community, and feature depth.
Key features
Pricing & licensing
| Tier | free |
| Price range | Free |
| Pricing model | open source |
| Free trial | No |
| Educational discount | No |
Completely free download from Delta Industrial Automation. Open registration required for download access. ISPSoft is the IEC 61131-3 successor for the AS/AH series.
System requirements
| Operating systems | Windows 7, Windows 8.1, Windows 10, Windows 11 |
| Minimum RAM | 2 GB |
| Recommended RAM | 4 GB |
| Disk space | 2 GB |
| Processor | Standard PC processor |
Lightweight installation — runs on older PCs. Good fit for educational labs.
Supported hardware
PLC families
- • DVP-EH3
- • DVP-ES2
- • DVP-SS2
- • DVP-SE
- • DVP-SX2
- • DVP-SV2
- • DVP-EX2
- • AH500 Series (via ISPSoft)
- • AS300 Series (via ISPSoft)
Capabilities
- ✓ HMI integration
- ✗ SCADA integration
- ✓ Variable frequency drives
- ✗ Safety programming
- ✓ Motion control
- ✗ Robotics integration
Pros
- +Free — no licensing cost ever
- +Lowest-cost path into PLC programming when paired with Delta DVP-ES2 hardware
- +Easy learning curve
- +Good for educators and self-learners
- +Cheap controller hardware ($50-200 range)
- +Massive global installed base in OEM machinery
- +Active community in Asia
Cons
- −Older WPLSoft UI feels dated; limited visual polish
- −Documentation translation quality varies (English documentation is improving but still lags Chinese)
- −Fewer integrated debugging tools vs paid alternatives
- −Limited adoption in North American and European industrial markets
- −Career value — Delta experience opens fewer doors than Siemens/Rockwell
- −ISPSoft (for AS/AH series) is a separate tool with different conventions
Best for
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Certifications & training
Delta Industrial Automation Engineer (Basic, Advanced). Cost tier: $.
Training providers: Delta Authorized Training Centers, Delta partners worldwide.