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Industrial Communication for Automation and Drives - Induteq

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Process or field communication<br />

Typical practice-related data<br />

1<br />

A list of the field devices which can be interfaced to<br />

the relevant networks <strong>for</strong> the purpose of process or<br />

field communication.<br />

2<br />

Configuring <strong>and</strong> commissioning can be done anywhere<br />

on the network.<br />

The freely selectable communication relationships are<br />

thus extremely flexible, easy to convert, <strong>and</strong> easy to<br />

change.<br />

3<br />

Slaves are network nodes on the PROFIBUS which<br />

send data back to the master at the master's request.<br />

4<br />

5<br />

6<br />

7<br />

AS-i is a single-master system with cyclic polling.<br />

The AS-i cycle time is the time it takes <strong>for</strong> the master<br />

The bus cycle time is understood to mean the time it<br />

takes <strong>for</strong> each master (active bus nodes) to receive<br />

When using electrical components, local networks<br />

can extend over the distance defined in the st<strong>and</strong>ards.<br />

The method of cabling used between the stations is<br />

referred to as the network topology.<br />

to poll the slaves, which is done at precisely<br />

predetermined intervals.<br />

the token (the right to send) precisely once.<br />

Greater distances can be bridged using optical<br />

components.<br />

8<br />

9<br />

10<br />

11<br />

12<br />

Transmission media are either two-wire cables or fiber-<br />

The degree of protection is shown as IPxy, whereby<br />

the first digit (x) refers to shock-hazard protection as<br />

well as protection against solid bodies.<br />

St<strong>and</strong>ards are international norms or guidelines<br />

In some networks, the power supply <strong>for</strong> the bus nodes<br />

The term 'interface' or 'interfacing' is understood to<br />

mean the physical method of connecting bus nodes<br />

to the bus cable.<br />

optic cables.<br />

The second digit (y) indicates protection against water.<br />

The higher the digit, the greater the protection.<br />

stipulating product properties <strong>and</strong> characteristics.<br />

is also supplied by means of the bus.<br />

15

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