User Manual

Bosch Rexroth AG
RE 95203/11.07 RC
3/20
The BODAS controller RC36-20 has been designed as a uni-
versal central controller for complex mobile working machines.
State-of-the-art 32-bit TriCore technology, a clock frequency
of 150 MHz and parallel processing enable the RC36-20 to
move in completely new dimensions in terms of performance,
previously the reserve of much larger PLC systems. The areas
of application of the RC36-20 range from programmable
actuation of proportional solenoids and additional switching
functions through travel drive and gear shifting to coordination
of highly complex control circuits in mobile working machines.
With 67 input channels, 56 output stages and an additional
analogue output (0 - 20 mA), plus four CAN buses for commu
-
nications within the vehicle, the RC36-20 provides a powerful
platform for all functions on mobile working machines.
Internally, the series 30 BODAS controller RC houses a pow
-
erful 32-bit TriCore microprocessor and all input and output
circuitry. Analog voltages in the range 0 - 10 V and 0 - V
sup
,
currents from 0 - 20 mA, frequencies from 0 Hz - 10 kHz and
switching information are processed as input signals. In ad-
dition, the RC36-20 has special inputs for intelligent Rexroth
sensors such as the DSM1-10 speed sensor with integrated
diagnostic function or for resistor inputs of 800 - 1800 ohms,
for example for the direct connection of temperature sensors.
The inputs are protected against overvoltage and electrical
interference. The voltage inputs can be monitored to detect
any cable breaks or short circuits. The current-controlled pro-
portional solenoid outputs are pulse-width modulated (PWM)
and temperature and voltage-compensated for high precision
and minimum hysteresis. They are optimally tuned for electric
proportional control of axial piston units and Rexroth valves.
The switched outputs are designed for the direct switching of
relays, lamps and switching solenoids. In addition they also
have integrated voltage and current monitoring.
CAN-bus interfaces are available with all BODAS controllers
RC for exchanging data with other bus users or electronic
systems (e.g. RC or RCE, joystick, diesel engine injection,
display). For communications, the BODAS controller RC36-20
has four independent CAN-bus interfaces, which can each be
operated using different protocols. Communication with the
software BODAS-design and BODAS-service is also conduct-
ed via CAN bus and is based on the Key Word Protocol 2000
(KWP 2000) standard.
The software BODAS-design makes simple and flexible pro-
gramming of BODAS controllers possible in compliance with
industrial standard IEC 61131, allowing a very
convenient and
fast introduction to RC36-20 programming. Comprehensive
and complex applications can be easily developed and clearly
presented with BODAS-design.
To develop the full potential of the BODAS controller RC36-20
when using programming language C, an application interface
in the form of a C-API interface can be used. This allows the
software developer to concentrate on the key functions of
his machine without having to deal with the details of TriCore
technology.
The software BODAS-service can be used to quickly and eas-
ily download programs onto the controller via the flash module.
The graphic Windows interface of BODAS-service allows com-
prehensive service functions such as diagnostics, parameter
setting or process variable display to be performed. This allows
simple parameter programming and diagnostics, so that the
machine can be quickly and reliably commissioned.
BODAS controllers RC were specially developed for use
in mobile working machines, and satisfy the relevant safety
requirements with regard to ambient temperature, tightness,
resistance to shock and vibration, as well as electromagnetic
compatibility (EMC).
Combined with pumps, motors, valves, sensors, input devices
and actuators from Rexroth, BODAS controllers RC and cor-
responding software can be used to create complete system
solutions.
Description