User manual

Glossary

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33002479 06 07/2008

I/O Drop One or two (depending on the system type) Remote I/O Channels consisting of a

fixed number of I/O points.

I/O Map An area in the controller configuration memory used to map input and output points.

Previously called traffic cop.

I/O Scan A procedure the processor follows to monitor inputs and control outputs.

I/O Scan List A configuration table that identifies the targets with which repetitive communication

is authorized.

I/O scanner Software component that is in charge of scanning Ethernet based Momentum IO in

order to get inputs and set outputs.

ICMP Internet Control Message Protocol. A protocol within TCP/IP used to report errors in

datagram transmission.

Internet The global interconnection of TCP/IP based computer communication networks.

IP Internet Protocol. A common network layer protocol. IP is most often used with TCP.

IP Address Internet Protocol Address. A 32-bit address assigned to hosts using TCP/IP.

layer In the OSI model, a portion of the structure of a device that provides defined services

for the transfer of information.

Legacy In the sense of network communication: Existing Components (PLC products etc.)

that do not provide special (hardware) support for Control Intranet.