Bosch CL400 - Operation with Buffer Battery; Operation Without Memory Card; Operation with Memory Card

Flexible Automation
Central processing unit ZS400
4-28
1070 072 143-101
4.5.1 Operation with buffer battery
When operating with a buffer battery, a distinction is also made between
D Operation without memory card and
D Operation with memory card.
PLC program memory, retentive data, data field and fixings are buffered via
the buffer battery.
Operation without memory card
With Power On and a battery failure, ZS400 switches to Stop. The PLC pro
gram must be reloaded.
Operation with memory card
. With firmware version 101, a first start is automatically carried out from
the inserted memory card after a battery failure. From firmware version
102 onwards, the battery failure must first be acknowledged using the
Reset key on the front panel of the power supply module.
If the software switch S114 is set to 0001H in the system range and a mem
ory card is inserted, the contents of the memory card is loaded into the RAM
memory of the ZS400 in the event of a cold start and restart of the control.
The extent to which the PLC program is altered in the internal RAM memory
of the ZS400 depends on the contents of the memory card.
D Memory card contains the entire PLC program with data modules:
The entire PLC program in the internal RAM memory of the ZS400 is
overwritten.
D Memory card contains all organisation modules, the program mod
ules 0 to 511 and all data modules:
All organisation modules, the program modules 0 to 511 and all data
modules are overwritten.
D Memory card contains the program modules 512 to 1023:
The program modules 512 to 1023 are overwritten.
D Memory card contains only data modules:
The contents of all data modules are overwritten. The reference list
and the data module headers are unaffected.
D If identical data modules at the memory card and in the inter
nal RAM memory have different data module lengths, loading
will be aborted with the error message
.