Product Description
Overview: The Rugged Serial Gateway for Your AC 800F Controller
The ABB FI820F is a robust, dual-channel serial Fieldbus module designed for the AC 800F controller family. This module provides a critical physical and protocol interface between the central processor and your field devices using industry-standard serial networks. It allows you to connect legacy or specialized equipment directly into the modern DCS architecture. Therefore, you can seamlessly integrate essential field instruments without forcing a complete network overhaul.
Functional Highlights: Dual-Channel Versatility and Robust Isolation
This module excels by offering two completely independent serial communication channels in a single compact unit. Each channel can be individually configured for different protocols, such as Modbus RTU/ASCII or PROFIBUS DP, providing exceptional application flexibility. Moreover, it features a formidable 2500V isolation barrier between each fieldbus channel and the controller's internal bus. In addition, its extended operating temperature range from -40°C to +70°C ensures reliable performance in almost any industrial environment. Consequently, you gain a durable and flexible communication node that protects your core controller from field-side electrical disturbances.
Technical Data & Specifications
Here are the core technical parameters for the FI820F Fieldbus Module:
Manufacturer & Model: ABB FI820F
Module Type: Serial Fieldbus Interface Module
Compatible Controller: AC 800F (requires PM 802F/PM 803F power module)
Communication Channels: 2 independent serial channels
Supported Protocols: Modbus RTU/ASCII (Master/Slave), PROFIBUS DP (Slave)
Isolation Rating: 2500V between fieldbus and controller
Operating Temperature: -40°C to +70°C
Humidity Tolerance: Up to 95% RH (non-condensing)
Dimensions (H x W x D): 27 x 127 x 155 mm
Weight: 0.16 kg
Mounting: DIN-rail
Origin: Sweden
Condition: Brand New, Active Product
Typical Applications & System Integration
This module is essential for integrating third-party devices that communicate via serial Modbus into an ABB 800xA or Freelance DCS. For instance, it is commonly used to connect skid-mounted packages, analytical instruments, weigh scales, or legacy PLCs to the main control system. Furthermore, its PROFIBUS DP slave capability allows it to act as a remote I/O drop on a Siemens or other vendor's PROFIBUS network. Remember that this is a slave/adaptor module; it requires proper configuration within the AC 800F controller's engineering software to map the field device data into the controller's process image.
FAQ
What is the main difference between the FI820F and an Ethernet module?
The FI820F handles traditional serial communication protocols (RS-485/RS-232 physical layer) like Modbus RTU and PROFIBUS DP. Ethernet modules (like EI813F) handle Ethernet-based protocols (Modbus TCP, PROFINET). Choose based on your field device's native network.
Can both channels on the FI820F run PROFIBUS DP simultaneously?
Yes, each channel is independent. You can configure one channel as a Modbus master, the other as a PROFIBUS DP slave, or both for the same protocol, providing great flexibility for mixed device environments.
Does this module require a separate power supply?
The FI820F draws its power from the connected AC 800F controller's base unit, which itself is powered by a PM 802F or PM 803F power supply module. No separate field power is needed for the module's logic.
What is the purpose of the 2500V isolation?
This high-grade electrical isolation protects the sensitive electronics of the AC 800F controller from voltage surges, ground potential differences, and noise that are common on long fieldbus cables running through industrial plants.
Is special software needed to configure this module?
Yes, you configure the FI820F's parameters (protocol, address, baud rate, data mapping) using the engineering tool for the AC 800F system, which is typically part of the ABB 800xA or Freelance engineering suite.
