Siemens LMV5 Series Technical Instructions page 282

Technical Instructions
Document No. LV5-1000
Starting adaption via Modbus
The routine used for identifying the path in the integrated load controller (termed "adaption" here) of
the LMV5... system can be controlled and monitored via Modbus.
In principle, the general conditions are the same as those used when making adaptions with the AZL52...
(refer to subsection 6.4.2 Self-setting of control parameters (adaption)) in the Basic Documentation of
the LMV5... system (P7550).
The terms Start adaption, Adaption active / inactive and Adaption state indicate the respective Modbus
addresses (refer to "Table of addresses").
Start the adaption via Start adaption and change the value from ≠ 1 to = 1. Starting the adaption has no
impact on adaption processes already under way (Adaption active / inactive = 1).
If Adaption active / inactive = 1, the process can be monitored via Adaption state (refer to data type
Adaption list). When Adaption active / inactive = 0, the adaption process is completed. On completion
of the process, the result can be read out via Adaption state.
To complete the adaption process prematurely, the value at Start adaption must be changed from ≠ 2 to
= 2.
Updating rate of AZL5
Fast System data that have already been updated automatically by the system process are
available on request, at a typical repetition rate of 200 ms.
Medium These data are cyclically queried in the system by the AZL... The typical updating rate
here is 5 seconds, depending on system load.
Slow These data are cyclically queried in the system by the AZL... The typical updating rate
that can be expected here is 25 seconds, depending on system load.
Constant These data are updated in the system by the AZL5... upon each Power On or reset.
When making a query, the updated data will be available after 25 seconds. Data that
cannot be changed (e.g. the production date, etc.) – neither with the AZL5... nor via the
ACS450 – can be identified by the value of 0 in the first Byte of the strings.
Upon reset Same as constant data, but these data can be changed in the system.
Error handling
Error codes The AZL... does not send any exception codes. A faulty message or a message with an
invalid address or function code will receive no response.
Section 8 Page 12
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