All of our SCADAPack and Flow and Pressure Measurement Products are offered with the industry-standard Modbus serial protocol for simple integration with SCADA software, MMIs, DCS systems and a wide range of intelligent instrumentation. Alternatively, most products are also available with DNP3 as an option, offering enhanced communications and interoperability. For those applications that require communication over a LAN or WAN most of the Control Microsystems products can be used with an optional integrated or stand-alone Ethernet module that offers a range of Ethernet protocols. For those unique applications where custom communications protocols are required, our company offers powerful C/C++ tools for custom programming. To see which options are available for each product, visit the individual product pages on this web site.
Modbus
Considered the industry standard, the Modbus protocol is a messaging structure used to establish master-slave/client-server communications between intelligent devices in a network. Control Microsystems products support this protocol and its two serial transmission modes, ASCIII and RTU. Using any of our configuration environments the user simply selects the desired Modbus mode and the serial port parameters that will be used for communication.
DNP3
The DNP3 protocol is also a standards-based, open protocol, in this case managed by an international user group. The protocol has a rich set of functions and was designed to work well in a wide area network. The protocol uses an object-based application layer and supports multiple operating modes including: poll-response, polled report-by-exception, unsolicited response and peer-to-peer. DNP3 offers time synchronised and time-stamped events and has the ability to provide confirmation on both the data link and application layers.
Download the DNP3 Data Sheet.
Ethernet
All of our SCADAPack and Flow and Pressure Measurement Products can communicate over an Ethernet LAN/WAN through the use of either an integrated or stand-alone Ethernet module. The modules, which provide an interface between serial and Ethernet networks, convert Modbus RTU or ASCII protocols to Modbus TCP, Modbus TCP in RTU, Modbus UDP or Modbus UDP in RTU. The network protocols available through the Control Microsystems Ethernet module include IP:ARP, TCP, TFTP, UDP and ICMP.
Control Microsystems reserves the right to change product specifications without notice.
