ABB AC 800M - Page 160

I/O Systems Section 3 Configuration
160 3BSE036351-510 A
This provides a total of eight clusters (groups), with a maximum 8 x 12 = 96 S800
I/O units connected to an AC 800M Controller with single CPU configuration.
Figure 54. Electrical and Optical ModuleBus Configuration
Maximum of 7
clusters (groups)
Maximum of 12 x I/O units
PM8xx
TB820
TB820
TB820
Optical
Local
ModuleBus
Central/Remote
Optical
ModuleBus
Electrical
ModuleBus
(Maximum of 1
cluster for PM851)