Digital control time switches ZCM-11 are used to realise the time functions in automation and control systems. Weekly programmers realise output relay control operations according to program adjustments (day, time). The device depending on its type has some additional functions e.g., a random function, which can be used to simulate presence, a control input function, which is used to change the operating mode of a system by means of an external push-button. An additional advantage of the ZCM-11P/U programmer is the ability to copy the programs adjusted in the time switch into an external memory stick, so they can be easily copied to other programmers. The design of the casing allows the system to be mounted on a TH-35rail and eventually to seal the device. The design of the system provides a battery back-up system for all adjustments in case of no voltage supply.
In order to protect the battery during storage, the ZCM-11 series programmers have a default setting, the so-called storage mode in which the battery power