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An open-source LabVIEW implementation of the S7 PLC network protocol using pure TCP/IP primitives, for talking to SIMATIC PLCs (and others) via Ethernet.
| Version | 1.0.1.10001 |
| Released | Jun 22, 2021 |
| Publisher | Hampel Software Engineering |
| License | BSD License |
| LabVIEW Version | LabVIEW>=16.0 |
| Operating System | Windows, Mac, and Linux |
| Project links | Homepage Documentation Repository |
Description
An open-source LabVIEW implementation of the S7 PLC network protocol using pure TCP/IP primitives, for talking to SIMATIC PLCs (and others) via Ethernet. The original source code was shared by Marc Christenson on NI's Example Program Code Exchange forum (link in the readme).
This is a reference implementation that has NOT been vetted for a production setting. It might or might not meet traditional requirements in terms of uptime, security, absence of bugs, etc. Use at your own risk!
The HSE Dokuwiki holds more information on the protocol and these VIs:
https://dokuwiki.hampel-soft.com/code/open-source/s7netcom
https://dokuwiki.hampel-soft.com/kb/production/s7-communication
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This software is published under a free licence; you can use, modify and extend it as you wish. However, if you need commercial support please contact us.
At Hampel Software Engineering (HSE) we work with our customers to increase the quality of their software through improved development processes. If you are interested in working with HSE or want to learn more about how we can help you please visit www.hampel-soft.com.
Release Notes
[FIX] Add missing terminal connector in "API/Write Data - Byte (Array).vi".
[IMPROVEMENT] Set the default PDU size to 960 bytes (the actual PDU size will be negotiated with the PLC).
[IMPROVEMENT] New accessor to read the actual (negotiated) PDU size.
Note, you must have the VIPM Desktop app to install this package into LabVIEW.
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