ABB AC 31 - Page 13

Presentation / operation
Page 1-6 ABB Control - AC 31
1SBC 260400 R1001-b 06.99
PC
Micro-
processor
SRAM
At program
launch
Program
dispatch
CENTRAL UNIT
Isolated RS232/485
liaison
Flash
ASIC
UART
Figure 1-3 : Functional diagram of the central unit