How do I connect the Verbatim Gateway to the Multismart from Multitrode using Modbus?
Both the Verbatim Gateway and the Multismart pump controller can communicate via Modbus.
The Verbatim Gateway will use Modbus Master RTU protocol and the MultiSmart will use Modbus RTU Slave protocol.
See the Verbatim Gateway Owners Manual for configuring Modbus. Start in Chapter 7 Section 7.4 Installing Modbus may help as well.
To configure the Multismart for Modbus Slave please see the attached, Multitrode supplied, configuration document.