BEI Sensors PHU9 Absolute Hollow Shaft Encoder - Manual (Page 38)

PROFIBUS USER MANUAL
38 Preliminary
BEI IDEACOD SAS
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GSD file
File that contains slave-specific characteristics. The GSD file is supplied
by the manufacturer of the profibus slave. The GSD format is
standardized (defined in GSD specifications), so configuration tools of
various manufacturers can use the GSD files.
Master
“Active” device in the network that can send data without request.
Controls the data interchange.
Octet Data unit of 8 bits = 1 byte
Profibus
Process Fieldbus, European fieldbus standard, which is defined in the
PROFIBUS Standard (EN 50170). This specifies functional, electrical and
mechanical characteristics for a bit-serial fieldbus system.
Slave
Bus node, that only sends data on request of the master. Absolute
rotary encoders are always slaves.
Terminating resistor
Resistor that terminates the bus cable; terminating resistors are always
required at the end of a cable or segment.
Word Expression used for a data unit of two bytes.