[NODE-36] Implement SMANet protocol Created: 02/Apr/13 Updated: 23/Feb/17 Resolved: 23/Feb/17 |
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| Status: | Closed |
| Project: | SolarNode |
| Component/s: | Power |
| Affects Version/s: | None |
| Fix Version/s: | None |
| Type: | New Feature | Priority: | Major |
| Reporter: | Matt Magoffin | Assignee: | Matt Magoffin |
| Resolution: | Won't Do | Votes: | 0 |
| Labels: | HAL | ||
| Remaining Estimate: | Not Specified | ||
| Time Spent: | Not Specified | ||
| Original Estimate: | Not Specified | ||
| Description |
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Modern SMA inverters use the SMANet protocol for communication, while older SMA inverters used a protocol named SunnyNet. We have an implementation of SunnyNet via the net.solarnetwork.node.hw.sma and net.solarnetwork.node.power.sma.sunnynet bundles, but need equivalent support using SMANet. The two protocols are very similar, but their network packet format is different. SMA provides a complete SMANet implementation written in C called YASDI. A Java wrapper for YASDI exists called yasdi4j, which is implemented in the net.solarnetwork.node.power.sma.yasdi4j bundle. This solution is not ideal, however, as it relies on native libraries that aren't easily wrapped into OSGi bundles. Implement a pure Java implementation of the SMANet protocol to replace the yasdi4j one currently in use. |
| Comments |
| Comment by Matt Magoffin [ 23/Feb/17 ] |
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We have been relying on yasdi for SMA communication and this has been quite stable for some time. Closing this ticket because there isn't enough justification to work on this presently; we can re-open if that changes. |
| Comment by Philip Court [ 11/Jun/13 ] |
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Some additional info from Matt: With this approach the documentation provided should provide all info required to change the existing SunnNet code to work for SmaNet. |
| Comment by Philip Court [ 09/May/13 ] |
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The "bundles" discussed in this ticket are top-level directories in the solarnetwork-node repository: https://github.com/SolarNetwork/solarnetwork-node so examples are https://github.com/SolarNetwork/solarnetwork-node/tree/master/net.solarnetwork.node.hw.sma The YASDI distribution includes some docs on the protocol, I've attached one here (http://bit.ly/1924nw2). You can also download YASDI to get the complete "C" based source code from here: http://www.sma.de/en/products/monitoring-systems/yasdi.html |