SI-INTERBUS User Guide
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Glossary of terms
Address:
This is the unique network identification given to a networked device to allow
communication on a network. When a device sends or receives data the address is
used to determine the source and the destination of the message.
Bit:
A binary digit, this may have the value of 1 or 0.
Block mapping:
A method of mapping a range of consecutive parameters using only
two ascending parameters. This means that by using two mapping parameters, up to
10 consecutive mappings may be made.
Byte:
A collection of 8 binary digits that collectively store a value. This may be signed or
unsigned.
Compression:
By default SI-INTERBUS transmits values as 32-bits on the network.
It is possible by using compression to reduce the number of bits transmitted when
sending 16-bit (or smaller) values on the network to 16-bit (32-bit values will still be
transmitted as 32-bit values). This has the advantage of reducing the volume of traffic
on the network and allowing more parameters to be mapped within SI-INTERBUS.
Control word:
A collection of binary digits that are used to control the drive. Features
typically include directional controls, run controls and other similar functions.
Cyclic data:
This consists of values that are sent at regular or cyclic intervals across the
network. A typical use of cyclic data would be the transmission of a speed reference or a
control word.
Data format:
Determines the quantity and function of the data sent and received across
the network.
Data rate:
Determines the communication speed of the network, the higher the value
the more data can be sent across the network in the same time period.
Device:
A piece of equipment connected to a network, this may be any type of
equipment including repeaters, hubs, masters or slaves.
Direct data mapping:
Data is sent directly to the mapping parameters in the drive
rather than the parameters redirecting the data to another parameter.
INTERBUS CMD tool:
The CMD tool is the software package used to configure and
diagnose the INTERBUS master controllers.
Mapping:
The process of linking INTERBUS values to parameters within the drive.
Master:
The controlling device on the network, generally this will include programming
features.
Mode 1 - CT single word mode:
A method of sending non-cyclic data using a single
word on a cyclic channel.