Quantum 890 USE 155 Uživatelský manuál stáhnout pdf (Strana 49)

Glossary

address

On a network, the identification of a station. In a frame, a grouping of bits that identifies

the frame’s source or destination.

API

Application Program Interface. The specification of functions and data used by one

program module to access another; the programming interface that corresponds to the

boundary between protocol layers.

ARP

Address Resolution Protocol. A network layer protocol used to determine the physical

address which corresponds to the IP address for a host on the network. ARP is a

sub–protocol which operates under TCP/IP.

BOOTP

Bootstrap Protocol. A TCP/IP–based protocol that allows a host to configure itself

dynamically. Provides a means to assign a host its IP address, typically without user

intervention.

bps

Bits per second.

bridge

A device that connects two or more physical networks which use the same protocol.

Bridges read frames and decide whether to transmit or block them based on their

destination address.

client

A computer process requesting service from other computer processes.

dest_idx

The destination field in a Modbus message. Corresponds to the Modbus device

addressed in the message.

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Quantum 890 USE 155 Uživatelský manuál Strana 49