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4.1
Introduction to EthernetIP
The JVL implementation supports manufacture specific objects to gain access to each
register in the motor.
This manual assumes that the servomotor user manual has been read and a base knowledge using the servomotor and the configuration software MacTalk is acquired.
The examples and screen shots in this manual are taken from MacTalk and a Rockwell
RSLogix5000 application.
Please be aware that other PLC vendors than Rockwell exist.
4.1.2
Daisy chaining
Up to 64 units (nodes) can be daisy chained. By daisy chained means making a direct cable
from the master in the system to motor 1 (L/A IN). From motor 1 (L/A OUT) to motor
2 (L/A IN) etc.
This method is saving hardware since no switch(es) and can often be the simplest way of
doing the wiring. The disadvantage is that the data will be delayed slightly depending on
how many motors that are daisy chained and the network load will be significant if a larger number of motors is connected this way.
Another and more common solution is to use a switch after the master and then distribute data to each node from this switch. This solution has a minimal delay of the data
stream.
JVL Industri Elektronik A/S - User Manual - Ethernet expansion modules for MAC motors
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