FI 840F

Overview

FI 840F is an ABB Foundation Fieldbus module designed for industrial communication with robust memory and low power consumption.

Electrical Characteristics

• Max power dissipation: 2.1 W

• Rated voltages: 5 V ±3%, 3.3 V ±3%, 2.5 V ±5%

• Active power consumption: 1.4 W to 2.1 W depending on communication load

Memory

• Module memory: 8 MB synchronous dynamic RAM

• Shared memory: 1 MB synchronous static RAM for CPU-module data exchange

• Firmware memory: 2 MB Flash EPROM, 32-bit word length, supports in-system and direct programming

• EEPROM: 16 kbit serial EEPROM, ≥10⁷ write cycles, data retention ≥10 years

Communication

• Medium: 100BaseTx cable, category 5

• Max segment length: 100 m

• Max nodes per segment: 2

• Transmission rate: 10 or 100 Mbit/s

Physical

• Weight: Approx. 0.150 kg (0.33 lbs)

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