Product specifications
Drive System Section 3 Configuration
168 3BSE036351-510 A
Drive System
ABB Standard (Std) and Engineered (Eng) Drives can be connected to AC 800M 
through any of the following:
• The optical ModuleBus
• CI801 and PROFIBUS DP
• NPBA-12, RPBA-01, or FPBA-01 PROFIBUS DP Adaptor modules along 
with CI854
• RETA-02 or FENA-01/-11 Ethernet Adapter modules along with CI871 
(PROFINET IO)
•CI858 DriveBus Interface.
ModuleBus
In single CPU configuration, ABB Drives can be connected to the processor unit via 
the optical ModuleBus. See Figure 59 on page 171. The number of ABB Drives 
which can be connected to the optical ModuleBus, can be described by the 
following equation:
(No. of ABB Drives) < 84 - (12 x (No. of TB820s))
that is, each Drive uses one ModuleBus cluster.
PROFIBUS DP and CI801
In single and redundant CPU configuration, ABB Drives can be connected via 
PROFIBUS DP and CI801. See Figure 59 on page 171. Only Standard Drives can 
be connected to CI801. Fourteen (14) Standard Drives can be connected to each 
CI801 if there are no I/O units connected. For the number of Drives that can be 
connected to the same CI801, when both I/O units (TB820) and Standard Drives are 
connected, refer to documentation about FCI for PROFIBUS DP. 
For more information about ABB Drives and its types (Std and Eng) refer to 
S800 I/O documentation.
For information about Branching Unit (Figure 59 on page 171) see ABB Drive 
System documentation.
ABB drives can also be connected via PROFIBUS DP (CI854/CI854A), with direct 
connection to PROFIBUS DP slave modules NPBA-12, RPBA-01, and FPBA-01.










