Bosch CL400 - Operation Without Buffer Battery, with Memory Card

Flexible Automation
Central processing unit ZS400
4-29
1070 072 143-101
D Data modules present at the memory card but not present in
the internal RAM memory are not loaded.
D Data modules not present at the memory card but present in
the internal RAM memory remain unchanged.
If the contents of the inserted memory card cannot be used for the startup
of the ZS400, the error message
i s displayed.
If no memory card is inserted, the error message
appears. This happens
even if proper buffering is present. The PLC program must be reloaded.
4.5.2 Operation without buffer battery, with memory card
The PLC program of the memory card is loaded into the RAM memory of the
ZS400 in the event of first start.
With earlier control versions, the memory card works as an EPROM pro
gram memory card. Another advantage of the CL400 with its internal
256 kByte RAM memory and memory card is that the PLC program is ex
ecuted from the internal RAM memory when the control is running. In this
way the data modules in the control operation can be used as write/read
memory. The data modules contain the current values even in Stop operat
ing status.
If the contents of the inserted memory card cannot be used for the startup
of the ZS400, the error message
i s displayed.
If no memory card is inserted, the error message
is displayed. This
happens even if proper buffering is present. The PLC program must be re
loaded.
In the case of a first start, the data field and the fixings are also deleted.