Rs485 Diagnostic And Monitoring Output - Bosch Rexroth CIMSmart Instruction Manual

Temperature drift at standstill:  ±0.025 mm/C

compensated after a movement of at least 10mm (after automatic calibration, see Section 5.1).
Maximum count frequency 410 kHz

Resolution 1024 pulses / cm, as per Figure 19.

The count frequency of the A and B output is 1024 (counts / cm) x speed (cm / s).

 It is advisable to use a counter module at customer side with an input frequency range twice
the expected maximum frequency calculated as above.
If the RS422 output cannot be used directly, a converter can be used to convert the 1024
pulses/cm to for example an analog 4-20mA, 0-20mA or 0-10V signal, see Section 7.4.
Displacements due to mechanical strain and temperature elongation of the piston rod are not
measured by the CIMS measuring system.
5.2.2. RS485 D
IAGNOSTIC AND
The CIMSmart provides a RS485 diagnostic and monitoring output using the MODBUS protocol.
Via a USB converter, like the one described in Section 7.4, the CIMS can be connected to a PC to
read out information about the CIMSmart, like the sensor identification number, the production
date, sensor status, error codes and the current position (since last power up).
A special software program is available to read out the diagnostic and monitoring information with
a PC, see www.boschrexroth.com/lhc. The diagnostic and monitoring output can also be
connected directly to for example a PLC. A detailed description about the MODBUS
implementation can be found in Appendix C.
1
At a temperature change > 60C and without movement of the cylinder rod in some exceptional situations
the temperature drift might be higher.
F037 300 069 (2015.09.02)
1
, any temperature drift will be automatically
M O
ONITORING UTPUT
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