Spare parts spare parts, the DCS control system of PLC system and the robot system spare parts,
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Performing a warm start
– Power OFF/ON, if there is a backup battery or
– Command WARM
Back-up of data areas, i.e. saving of data during power OFF/ON, is only feasible with built-in battery. The following data can be backed, completely or partly: – Binary flags – Word flags – Double word flags – Step chains – Historical values In order to back-up certain data, they have to be excluded from initialization to 0. Initialization of data areas During program start, that data areas are initialized to 0 partly or completely, that are defined by system constants. The initialization works as shown in the following table.If no battery is effective or if the system constants are in their default values (factory settings), all of the above mentioned data areas are completely set to 0 after power OFF/ON.
– Absolute identifier: KW 00,08 – Symbolic identifier: ÜLAST_REAK – Meaning of the value of the constant: Overloaded output is switched on again automatically: 0 Overloaded output is not switched on again automatically: 1 If another value than 0 or 1 is given, the PLC selects the standard setting ”automatic reset
warm start or cold start – Absolute identifier: KW 00,09 – Symbolic identifier: HOCHFAHR – This system constant is only effective if the central unit is configured as a bus master. – Meaning of the value of the constants: The user program is started. The central unit takes no notice of initialization of the CS31 remote modules and their adoption into the CS31 bus cycle: =0 The user program is not started until at least n remote modules have been initialized and adopted into the CS31 bus cycle: =+n The user program is started. It does not handle the process inputs and outputs until at least n remote modules have been initialized and adopted into the CS31 bus cycle. However, the CS31 status information in EW 07,15 is available as early as with the program start. This is also valid for the dual port RAM image of the two high-speed inputs at terminals 02 and 03: =–n – Range of values: –31...+31 – Default value: 0 i.e. the user program is started immediately. A change of this system constant becomes effective: – with the next warm start or – with the next cold start.