![background image](http://html.mh-extra.com/html/abb/ac-31/ac-31_technical-manual_176018.webp)
Presentation / operation
ABB Control - AC 31
Page 1-11
1SBC 260400 R1001-b
06.99
3.5. Power on / program launch
The central unit executes a complete series of auto tests at each startup. The program can
only be launched if no errors have been detected.
The auto tests verify the following:
- the program syntax,
- the data transmission,
- the status of the extensions,
- the status of the remote units if there is a master central unit,
- the startup conditions (reset or not of internal memories).
The central unit initialization depends on the startup type:
Startup type
Initialization
Power on
or software RESET or warm restart
- Clear the program in RAM
- Copy the Flash EPROM contents to RAM
- Clear the data in RAM according to
the configuration
Central unit STOP / RUN button
- Copy the Flash EPROM contents to RAM
The RAM remains unchanged if there isn’t a
program in the Flash EPROM.
- Clear the data in RAM according to
the configuration
Software cold restart
- Clear the program and data in RAM
- Copy the Flash EPROM contents
to RAM
The bus system is also initialized after startup if the central unit is the master on the CS 31
bus.
Summary of Contents for AC 31
Page 1: ...Technical Manual Advant Controller 31 40 50 Series 1SBC 260400 R 1001 b ...
Page 7: ......
Page 43: ......
Page 45: ...Technical specifications Page 3 2 ABB Control AC 31 1SBC 260400 R1001 b 06 99 ...
Page 83: ......
Page 85: ...Installation Page 4 2 ABB Control AC 31 1SBC 260400 R1001 b 06 99 ...
Page 109: ......
Page 130: ...Programming ABB Control AC 31 Page 5 21 1SBC 260400 R1001 b 06 99 ...
Page 182: ...Communication ABB Control AC 31 Page 7 11 1SBC 260400 R1001 b 06 99 ...
Page 189: ......
Page 203: ......
Page 217: ......
Page 218: ...AC 31 technical documentation ABB Control AC 31 Index Page 1 1SBC 260400 R1001 b 06 99 Index ...