Specifications

Open CTM (Revision D)

Command Reference

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modbusctm130 n

Enables MODBUS backward compatibility with the CTM13x by using MODBUS RTU encapsulated in UDP

packets for messages transmitted/received over-the-air.

The CTM13x 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

A cmd save, and a power cycle are required before the modem is configured to use the specified

MODBUS over-the-air protocol.

Examples:

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

cmd modbusctm130 Query the currently configured MODBUS over-the-air protocol

A cmd save is required for this command to take effect.

return to list of commands

modbusdel n

Deletes an entry or all entries from the MODBUS list.

n = 0 deletes all MODBUS entries

n = 1 to 247 MODBUS ID entry

Examples:

cmd modbusdel 1 delete the entry with MODBUS ID 1

cmd modbusdel 0 delete all entries in the MODBUS list

A cmd save is required for this command to take effect.

return to list of commands