The ABB 88FN02B-C is a Coupling Device from ABB's S800 I/O series, designed for industrial process control systems. This coupling device is an essential component in distributing signals between I/O modules, ensuring smooth communication between various parts of the control system.

Model: 88FN02B-C

Type: Coupling Device 

Series: S800 I/O

The primary function of the 88FN02B-C module is to manage communication between input/output modules and the central control system (e.g., AC800M controller) in a distributed control system (DCS). 

The 88FN02B-C module connects to the S800 I/O bus, facilitating the communication between input/output modules (both digital and analog) and the control system.

 The communication data rates typically range from 10 Mbps to 100 Mbps.

The 88FN02B-C is not an I/O module itself, but it functions as a coupling device that links I/O modules to the central system.

The 88FN02B-C：24 V DC power

The power consumption：2 W to 4 W 

The 88FN02B-C module is designed to be installed within an S800 I/O rack, similar to other modules in the series.

Dimensions: 120 mm x 80 mm x 50 mm.

Weight: 0.5 kg and 1 kg

Operating Temperature: -20°C to +60°C. 

Storage Temperature: -40°C and +85°C.

Humidity: 5% to 95%

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