Bosch CL400 - First Start; Cold Start; Restart

Flexible Automation
Central processing unit ZS400
4-27
1070 072 143-101
First start
First start refers to the startup of the control after switching on the power
supply module, and operation without a buffer battery or after a battery fail
ure. The internal RAM memory does not contain a valid PLC program. If a
memory card is inserted, the PLC program is loaded from the memory card
to the internal RAM memory.
All retentive data, the data field and the fixings are deleted.
The software switch S114 is then set to 0000H automatically.
Cold start
Cold start refers to the startup of the control after switching on the power
supply module or after a power failure.
Restart
Restart refers to the startup of the control after a Stop/Run switchover.
Software switch S114
The software switch S114 in the system range is used to select the valid PLC
program.
D S114 = 0000H PLC program in internal RAM me
mory is valid
D S114 = 0001H PLC program on the memory card
is valid and is loaded from the me
mory card to the internal RAM me
mory
There are two ways to set the software switch S114:
D PLC program instruction, e.g. in organisation module OM1
D Command in PLC service program
This setting is only effective once for the next startup, subsequently the
software switch is automatically set to 0000H.
Retention
See subsection 4.1.3 Retention switch