Hi Carl,
All nodes posting to a single Emomcs account need to have a a unique node ID.
If you want to post to a single Emoncms account, you will need to change the node ID on two of the emonTx units. If your emonTx are running firmware V2.6+ the nodeID can be changed via serial config. You will require a USB to UART adapter (available from the shop)
I recommend changing the node ID’s of 2/4 of the emonTx’s to 9 and 10.
The current emonTx node ID’s should be 7 and 8, you should leave the other 2/4 emonTx to have node ID 7 & 8.
If your emonTx has firmware older than V2.6 then you will either need to upgrade the firmware and or update the node ID in the firmware then upload. See:
https://guide.openenergymonitor.org/technical/compiling/
EmonTx V3 firmware repo: