ABB CI853K01 RS232 interface communication module
1.1 Introduction
The ABB FieldController 800 is an Industrial IT Controller which, along with its add-ons, offers a
straightforward and successful way into Fieldbus systems.
• Reading in and expanding configuration information from new field devices
• Configuring devices via parameter-definition masks and using pre-defined I/O structures
• Showing bus cycle times and diagnostic data from devices
• Searching the bus for subscribers with unknown device addresses
• Removing individual devices from the cyclic communication
• Incorporating new devices without having to initialize the bus line
You can perform the necessary configuration and commissioning tasks from your PC using just a
single software tool: Diagnoses are performed in graphic interfaces. In addition the Engineering
Software offers extensive diagnosis options right down to the field devices.
Your automation task is configured in graphic editors as per IEC 61131-3 and loaded online into
the AC 800F.
So that you can easily display and operate your process, high-performance display packages
such as DigiVis and Maestro NT are also available for the AC 800F.

1.2 System summary
The System bus (Ethernet) links the individual stations. It transmits data between the FieldCon trollers
the operator stations, the engineering station and the process stations via coax. or fiber optic cables.
The Process station bus (CAN) connects a maximum of five I/O units to the AC 800F. 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 fieldbus module FI 810F.
The serial interface Modbus connects subsystems – e.g. balances, bar code readers, etc. – to
the system, preferably via the RS485 interface. Module FI 820F provides two channels to the
FieldController to enable serial interfacing.
The engineering station is a PC or laptop with MS-Windows NT 4.0 and the DigiTool software
package. It is used by the operator for system configuration, documentation, and commissioning.
After these tasks have been completed, the engineering station can be disconnected and used for
other purposes.
The operator station is a PC with MS-Windows NT 4.0 and the DigiVis software package. It is
recommended to use an industrial PC. Besides a 17" or 21" color monitor, standard keyboard and
mouse, several components to IP 65 are available on request. A maximum of two printers for
message and report printing can be connected.
The AC 800F consists of:
• the housing with CPU board and module slots,
• the power supply module,
• at least one Ethernet module,
• a maximum of four fieldbus modules
There are different variants of the fieldbus modules for:
Profibus DP
Modbus
CAN