modbusctm130 n

*This is command is used when CTM200 is being used as a MODBUS Gateway*

Enables MODBUS backward compatibility with the CTM-13X by using MODBUS RTU encapsulated in UDP packets for messages transmitted/received over-the-air.
The CTM-13X modems only use MODBUS RTU over UDP as the over-the-air protocol for communicating between other modems configured as MODBUS master and slave gateways.

n = 0	Use MODBUS TCP for over-the-air communications (default)
n = 1	Use MODBUS RTU over UDP for over-the-air communications

Examples:

Set MODBUS gateway to send/receive MODBUS RTU over UDP messages :
cmd modbusctm130 1