Retain memory, 9300 servo plc – Lenze DDS Target 9300 Servo PLC V8.x User Manual
Page 108

9300 Servo PLC
Appendix
3−102
L
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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