TCP/IP Hosts

The CTICMP driver uses the TCP/IP method of communication to talk to any TCP/IP device that can be pinged on a network. The physical network layer below TCP/IP does not matter. The driver can communicate over Ethernet, ATM or FDDI as long as TCP/IP is available.

The CTICMP driver provides the facilities for Plant SCADA to be configured to periodically check the status of hosts on a TCP/IP network. It achieves this by sending Echo messages (pinging) to a host and waiting for an Echo Reply message.

Echo/Echo reply message are part of the Internet Control Message Protocol (CTICMP) which is part of the Internet Protocol (IP) and is available in any TCP/IP installations.

In this documentation, TCP/IP devices on a network are referred to as 'hosts'.

Note: The same Ethernet card that is being used for Plant SCADA communication can be used for PLC communication, though this may lower performance.

See Also

Device Address

Hardware Setup

Communication Settings

TCP/IP Host Data Types