Parameterising of LenzeIOSystem.Lib on PLC devices takes 25 - 35 s

Question:

Why does the parameterising of the I/O system with the PLC sample programs and LenzeIOSystem.Lib 25 - 35 s?

Answer:

The parameterising of the I/O system takes 25 - 35 seconds as a number of times are added up during the parameterising of the device from the PLC using the library.

In chronological order, these times are:

• Initialising of the I/O system after connecting the power supply (LED RD blinking green) => Time max. 10 seconds (from experience 4 ... 8 s)
• Parameterising of the I/O system from the PLC program => Time 1 ... 10 s; The following can be parameterised using function modules of the library: analog modules, counters, compact modules, communication parameters and monitoring functions (therefore the time varies). During the parameterising communication parameters are always changed (this function module is part of the minimum configuration) so that the module must re-initialised.
• Re-initialisation of the I/O system (LED RD blinking green) => Time 9 ... 10 s; The re-initialisation is released by the parameterising function block  L_IOParPDOxx. After this time has elapsed the function block output bParDone indicates TRUE and the process data communiation can start.

Only after a total time of 25 - 35 seconds the master at the CAN bus can send the NMT telegram 'Go from pre-operational to operational' to set the I/O system to the operational state.  

It is important to adapt the boot up time at the CAN master (code C0356/1) so that the telegram is not sent too early. Otherwise the I/O system will remain in the pre-operational state.

URL for linking this AKB article: https://www.lenze.com/en-de/go/akb/20032833/1/