Cypress CTM-130 Manuale Utente
© 2007 Cypress Solutions
Installation and Operation Manual: CTM-130 / CTM-132
(Revision 1.2)
Page - 33 -
9.7 Industrial Monitoring Operation
The advanced communication capabilities of the CTM-130/132 modem are designed for enabling
communications with remote industrial sites. These sites often operate equipment utilizing industrial
communication protocols such as MODBUS RTU. The CTM-130/132 modem supports the MODBUS
protocol and can be configured for either slave or master connection. In master connection the modem
performs MODBUS ID to IP mapping.
communications with remote industrial sites. These sites often operate equipment utilizing industrial
communication protocols such as MODBUS RTU. The CTM-130/132 modem supports the MODBUS
protocol and can be configured for either slave or master connection. In master connection the modem
performs MODBUS ID to IP mapping.
Base Station
MODBUS Slave devices
MODBUS Master Application
CDMA Netw ork
Chameleon Modem
MODBUS Slaves
Request
Response
UDP encapsulated
MODBUS RTU
messages
Base Station
Chameleon Modem
MODBUS Master
MODBUS RTU
or ASCII
MODBUS RTU
MODBUS ID to
IP address map
For other industrial protocols the PAD communication features of the modem can be configured to
enable these to be implemented over the CDMA network.
enable these to be implemented over the CDMA network.
Base Station
Remote Application #1
Local Application
CDMA Netw ork
Chameleon Modem
Internet or Private
Netw ork Group
Request
Response
UDP encapsulated
messages