RETAIN_IMPORT¶
With a rising edge (False -> True) at input EN of the Program RETAIN_IMPORT, all data in the retain area are written from the SD Card to the RAM-DISC.
Retain variables are declared with the keyword RETAIN. These variables keep their values after an uncontrolled abort as well as after a normal switch off/on of the control system (or with the command ‘online’ ‘reset’). At a new start of the program work is continued with the stored values.
| Available as of PLC runtime system: | V1.2 |
| Included in library: | SysInt_AC500_V10.lib |
| Type | Program |