Lenze DDS Target 9300 Servo PLC V8.x Instrukcja Użytkownika Pobierz pdf (Strona 108)

9300 Servo PLC

Appendix

3−102

9300 Servo PLC EN 5.1

3.3.1 Retain memory

In the retain memory the values of the retain variables are stored safe from power failure and are thus

available to the program even after mains switching. (Saving with C0003 = 1 is not required.)

 Retain variables are declared by means of the variable class VAR RETAIN.

 Retain variables are created as a symbolically addressable memory.

 With each program download the retain variables are reset to their initialisation value. If an

initialisation value has not been defined, the corresponding retain variable will be initialised

with the value "0".

 In the DDS online mode you can use the commands Online W Reset (cold) and Online W

Reset (original) to reset the retain variables in the PLC to their initialisation values.

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Lenze DDS Target 9300 Servo PLC V8.x Instrukcja Użytkownika Strona 108