Serial Number; Manufacturer-Specific Diagnostics; Other Faults - TR-Electronic COS-65 Benutzerhandbuch

7.2.2.17 Serial number

Extended diagnosis, byte 48 - 57
The diagnostic bytes indicate the serial number of the measuring system. If this
function is not supported, asterisks are used (hexadecimal code 0x2A) **********

7.2.2.18 Manufacturer-specific diagnostics

The measuring system does not support any other manufacturer-specific diagnostics.
According to the PNO encoder profile, an measuring system must set the bits
"Ext.diag" (extended diagnostic information available) and "Stat.diag" (static error)
in the event of an internal error being detected in the station status. This means that,
in case of error, the measuring system stops providing position data and is removed
from the process image by the PROFIBUS master until the error bits are reset. It is
not possible for the user to acknowledge the error via the PROFIBUS in this way.
This function is only guaranteed provided the "Commissioning diagnostics"
function is activated.

7.3 Other faults

Fault
measuring system
step changes
Profibus
when the measuring
system
connected,
indicates a fault when
the bus
mounted
measuring system
Printed in the Federal Republic of Germany
10/31/2018
Cause
Strong vibrations
Electrical faults
EMC
Excessive axial and
radial loading of shaft
or scanning defect.
operates
is not
but PROFIBUS Data-A
and Data-B reversed
cover is
on the
TR - ECE - BA - DGB - 0131 - 02
Remedy
Vibrations, shocks and jolts, e.g. on presses, are
cushioned by so-called "shock modules". If the error
persists despite these precautions, the measuring system
must be replaced.
Electrical faults can be countered by means of insulating
plastic flanges and couplings, and by data and power
supply cables with twisted-pair conductors. The screening
and wiring arrangement must conform to the assembly
guidelines for PROFIBUS.
Couplings prevent mechanical strain on the shaft. If the
error persists despite this precaution, the measuring
system must be replaced..
Inspect all connections and conductors relating to the
wiring of the measuring system.
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