ABB AC 800F

1 AC 800F System Overview
1-2
Figure 1-1 shows the AC 800F integrated in the Freelance 2000 automation system
as an example.
Fig. 1-1 Configuration example: AC 800F integrated in the Freelance 2000 system
The system bus (Ethernet) links the individual stations with each other. It transmits
data between the AC 800F controllers, the operator stations, the engineering station,
and the process stations via coaxial or fiber-optic cables.
The CAN bus connects the central unit to the I/O units. It is used to transmit the
input/output values from the AC 800F to the I/O modules. For this purpose, the
AC 800F is equipped with CAN module FI 810F.
Modbus connects subsystems –e.g. balances, bar code readers, etc. –to the system,
preferably via the RS485 interface. The serial fieldbus module FI 820F provides two
channels to the AC 800F to enable work with Modbus.