General Remarks; Safety; Concept; Interface Connections - Fronius InterBus 2 MB Bedienungsanleitung

General remarks

Safety

Concept

The Interbus system is designed as a data ring with a central master/slave access
procedure. It is structured as a widely distributed shift register. Each machine, with its
registers of different lengths, forms part of this shift register ring through which the data
is shifted in series, starting with the master.
Using a ring structure allows data to be sent and received simultaneously. The data
travels through the ring in both directions via a cable.
Each participant in the InterBus system has an ID register (identification register). This
register contains information about the module type, number of input and output regis-
ters, as well as fault and other statuses.
The InterBus system basically recognises two operating modes:
-
-
Interface connec-
tions
Fig. 1 Interface connections
WARNING! Operator error and shoddy workmanship can cause serious injury
and material damage. Do not carry out any of the operations described in this
manual until you have completely read and understood the following documents:
- these operating instructions
- the power source operating instructions, particularly the chapter entitled
"Safety rules"
- all operating instructions for the complete system.
WARNING! Operating the equipment incorrectly can cause serious injury and
damage. The activities described in this manual must only be carried out by
trained and qualified personnel!
The ID cycle, for initialisation of the InterBus system and on demand. In the ID
cycle, the interface module in each machine on the bus system reads the ID register
and uses it to create the process image.
The data cycle (the actual work cycle) that handles the data transmission.
In the data cycle, the input data from each machine is transmitted from the registers
to the interface module, and output data is transferred from the interface module to
the machines.
(2) (3) (4)
(1) Strain relief device
for feeding the Interbus data line and
power supply
(2) LocalNet connection
for connecting the intermediate
hosepack.
(3) LocalNet connection
for connecting other system compon-
ents
(4) LocalNet connection
for connecting other system compon-
ents
(1)
2