John Barry

Hi, Does anyone have a suggestion to which power meter works well with any unistream PLC? I've tried a few (Kingsine PCM 72L, Socomec A-20, Enties MPR3) with a modbus RS485 connection. I have other devices in the dasiy chain that work well, all sessions are successful with no drops except for the power meters. Basically i need to find a brand that has the same modbus standard as Unitronics?