Configurable Cyclic Data - Ametek Land SYSTEM 4 User Manual

User Guide

4.3 Configurable Cyclic Data

In Configuration, it is possible to organise the continuous reading and writing
of cyclic data. The most obvious candidate for cyclic data is the 'Temperature'
value. However, within the LMP it is also possible to select most of the user
parameters for cyclic adjustment i.e. without having to re-initialise the
Profibus DP system.
When adjusting a parameter cyclically (eg. emissivity), the value overwrites
the parameter that was written during 'User Parameterisation'. However, it will
only be stored in volatile memory. If power is lost, the LMP reverts to the user
parameter version of the parameter until data-exchange is re-established
when the cyclic value will be used again.
The .gsd file uses the 'module' system to allow the user to select the
parameters that they wish to exchange cyclically.
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