5−14
Electric Drives
and Controls
Bosch Rexroth AG
RhoMotion
1070072367 / 04
CAN-Bus peripheral equipment
5.5
Analog I/O with CAN B~IO modules
For the processing of analog I/O signals, the coupling of analog modules
is realized in the rho4. Two CAN busses are integrated which can be
used for the communication of the rho4 with the analog modules.
It is possible to measure voltages or currents and process in decimal
BAPS variables. For this purpose, there are two input modules variants
that can be set on voltage or current measurement.
Decimal BAPS variables and further data such as axis positions, path
speed and after-running can be output on analog outputs. There are two
different analog output modules available for current and voltage output.
5.5.1
Bus switching
The modular field bus switching B~IO M-CAN can be driven by means of
the CANopen protocol or also with the Bosch rho conformal CAN proto-
col. The protocol is selected by the setting of the machine parameter
P30.
With a bus switching, different analog I/O modules can be combined and
operated. A combination with digital I/O modules is possible. The bus
switching B~IO M-CAN supports at the maximum 32 bytes inputs and
outputs.
The bus switching is fixed with the I/O modules on a DIN-top hat rail. It is
always on the left as the first modules. The I/O modules are fixed on the
right next to the bus switching on the rail and connected with a modules
connector with the corresponding neighbor modules. (See also Descrip-
tion of the modular bus switching B~I/O-M-CAN).
Summary of Contents for Rexroth Rho 4.0
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