NETSTAX™ EIPA
EtherNet/IP Adapter DLL Kit
NetStaX EtherNet/IP Adapter DLL Kit (EIPA) allows you to quickly introduce EtherNet/IP Adapter Class and CIP Security functionality into your PC-based products and systems.
How it Works
Version 5.6.1 – Released August 18, 2026 – Tested with ODVA CT22
The EIPA stack provides EtherNet/IP I/O Server, Message Server, and Message Client functionality (unconnected Explicit messaging only).
It also provides a logical and manageable Application Programming Interface (API) for developing Windows and .NET applications with the supplied 32 and 64 bit DLLs and .NET interface.
Since the EIPA stack is compatible with the standard Windows TCP/IP stack and standard PC/Laptop Ethernet NICs, you can get up and running quickly with no additional hardware or drivers required.
Pyramid Solution’s EIPA is distributed under a royalty free software license agreement.
The EIPA comes with 12 months of download access to the latest version and built in phone/email tech support.
Additional Services options are available to assist you with EtherNet/IP requirements, design, EIPA Stack integration, pre-conformance testing and more.
Supported/Included Objects
- Message router
- Connection manager
- DLR**
- CIP Sync**
- Port
- QOS
- Identity
- EtherNet link
- TCP/IP
- Assembly
- File object
- Class 0 support
- Energy object
- LLDP objects
- User defined objects
Components
- EIPA Getting Started and Software Reference Manuals
- EIPA Adapter DLLs (32 & 64 bit) with C++ function call API and C# API for .NET applications
- Adapter Class example code
- Application notes with code samples
- Sample SOC files for pre-conformance testing
- Sample EDS files
Features
- Version 5.6.0
- Tested with ODVA CT22
- Supports
- TCP/IP object revision 2
- Object revision 2
- Ethernet Link object revision 4
- “Big 12” Diagnostics
- Added Identity Object Catalog Number (21) and Manufacture Date (22) attributes to the default attributes
- SetIdentityExplicitProtectionMode API to allow the application to control the explicit Protection Mode
- Assembly object revision 3
- Full support for Dynamic assemblies
- EIPA-SECURE feature update
Benefits
- High performance
- Out-of-the-box examples
- Simplified porting
- Minimized resource
- Rich set of features
- Scalable
- Secure
Compatibility, Resource Utilization, & Management
- Enables EtherNet/IP Adapter Class functionality for your product
- UCMM (unconnected) message client and server
- Class 3 (connected) message server
- Class 1 (I/O) connection server
- CIP Security*
- Compatible standard Windows TCP/IP stack and PC / Laptop Ethernet NICs
- Compatible with Microsoft Windows 7, 8.x, 10 and 11
- v5.2 examples were built and tested with .NET and version 4.8
- 32 and 64 bit DLLs included
Resource utilization and management
- All resources initialized at stack startup
- No dynamic memory or thread allocation
- Runs on a single thread
Optional EIPA add-ons
We also offer add-ons to address your specific needs, along with services including consulting, implementation, and support to ensure you maximize connectivity.
Enable CIP Security Functionality for NetStaX™ EtherNet/IP Adapter DLL Kit
EIPA-SECURE
- Prevents malicious EtherNet/IP communications and spying
- CT22 compliant
- Pre-built package for easy integration of existing EIPA applications
- Pre-tested against common Rockwell Automation EtherNet/IP devices
* The EIPA-SECURE package is required to enable CIP Security features using the SSL Library you provide
** These objects are for configuration only. No DLR or IEEE 1588 software or hardware is provided
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