Profibus Unit Features - Yamaha SRCD User Manual

CHAPTER2 PROFIBUS Unit
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PROFIBUS unit features

PROFIBUS is a fieldbus standard jointly developed by Siemens, Bosch, ABB, etc. in
Germany in the 1980s. The PROFIBUS specifications were established in 1989 and the
organization called "PNO" (PROFIBUS Nutzerorganisation) was founded in Germany
to start activities to spread the PROFIBUS.
To allow PROFIBUS to be used more effectively according to the specification purpose,
the PROFIBUS family is composed of two types of buses: PROFIBUS DP for factory
automation and PROFIBUS PA for process automation.
Main features of this PROFIBUS unit are as follows:
■ The controller can be connected to the PROFIBUS system using this unit. This unit
fits directly inside the controller and so does not require any extra installation space.
■ The PLC is connected to the robot system using only one dedicated cable (with 5
wires). This allows the entire system wiring to be reduced and also makes wiring
tasks faster and more efficient while reducing maintenance and installation costs.
■ A total of 32 general-purpose input/output pins and 16 dedicated input/output pins
are available. The parallel I/O interface can of course be used as is.
■ Emulated serialization on parallel I/O is available
All types of I/O equipment, such as sensors and relays, connected to the parallel I/
O of the controller can be controlled from the PLC (sequencer) just as if connected
to the I/O of the PROFIBUS system and without using a robot program.
■ When the remote register is used, the message (remote command) can be issued
directly from the sequencer (PLC). The high-ranked commands such as MOVD
command (movement command which directly specifies the position coordinates),
which must use RS-232C unit conventionally, can be easily executed.
Refer to the particular service manual involved when detailed information on connecting
to the master station PLC (sequencer) or on PLC (sequencer) programs is needed when
using other equipment.
Refer to the controller instruction manual for information involving operating the con-
troller unit and on robot programming.
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