ABB AC 800M

Section 1 Introduction PM891 Processor Unit – General
3BSE036351-510 A 45
Figure 12. AC 800M/S800 I/O Interconnection Configuration with single PM891
Note1 - Maximum 7 clusters x 12 = 84 modules. Max 200 m between clusters.
Note 2 - Remote S800 I/O. Maximum 24 modules/station (12/cluster),
24 x 32 =768 modules per segment.
(1 cluster only for PM851)Restrictions apply, see I/O documentation.
Additional stations
up to maximum of
32 stations per
Repeater
TB820
CI801
TB820
To 6 Additional Optical
Modulebus Clusters
Optical
Segment
R
Unit
Optical
Optical
CI854A
See Note 1
See Note 2
1 Segment of
PROFIBUS DP
(not PM851)
Note 3 - Maximum one CEX-module for PM851.
See Note 3
PM891