Honeywell FC-PSU-UNI2450U V1.0

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Honeywell FC-PSU-UNI2450U V1.0

 Technical data  

The AC 900F controller consists of a CPU module which is the main component. According
to the application and requirements, further modules can be added to the controller. These
modules are fieldbus interface modules and I/O modules.
The AC 900F consists of:
– CPU module PM 902F or PM 901F with
– four Ethernet interfaces for PM 902F or three Ethernet interfaces for PM 901F
– one diagnostic interface
– two serial interfaces
– display unit (optional)
– Up to ten S700 I/O modules directly attached on terminal units
– A maximum of two fieldbus interface modules

The AC 900F controller can be arranged in a single or redundant manner. The controller 

supports remote I/Os, transmitters, actuators, drives and other devices, for example through
PROFIBUS and other fieldbus protocols. At present, the following field busses are available for
the AC 900F controller:
– PROFIBUS DP V0/V1
– Modbus RTU and Modbus TCP
– Telecontrol and Telecontrol TCP
– CAN Bus for connection of Freelance Rack I/O

Input/output modules are used as direct I/O and remote I/O in accordance with the type and
quantity of process signals.

The hardware configuration of AC 900F is based on a hardware function block concept similar
to the configuration like AC 700F and AC 800F.
AC 900F can be equipped with a maximum of two PROFIBUS modules. You have the option to 

run these controllers in redundancy.
Modular plug-in I/O modules are used in accordance with the type and quantity of process signals.
With AC 900F controllers, fieldbus compliant components such as remote I/O, field devices, 

and network components can be used. ABB offers equipment for applications covering standard 

and hazardous areas.

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