ABB Ethernet Modules EI 801F

Ethernet Modules EI 801F

Features

IEEE802.3 Ethernet standard

Provides 10Base2 compliant communication

32-bit data bus

Transmission rate 10 MBit/s

Direct memory access to main memory, < 4% CPU over

head for operation

Optional battery for redundant battery backup of main

memory

Description

These communication modules provide Ethernet communica

tions to the system bus compliant with IEEE802.3 standard.

Communications module, compliant with 10Base2 (Cheapernet)

for thin coax cable installations.

EI 801F

LED Displays

State

Off No supply voltage, module is isolated

Green Power supply on, module identified and

ready to operate as configured.

Orange Power supply on,

module identified and either:

— normal transitory state after module

startup

— configuration mode of Boot Loader

Orange flashing Power supply on, module identified; mod

ule not connected to proper bus structure.

Red Power supply on and either:

— module not yet identified (normal for

short time during module startup)

— error occurred during module test

Batt. Low

Off Sufficient buffer battery voltage.

Orange Buffer battery not found or low (insufficient

voltage).

Front Panel Connections

Coax connector

Technical Data

Rated voltage 3.3 V / 5 V, ±3%, from CPU board

Power consumption max. 2.8 W

Thin Ethernet 10Base2

RAM and real-time-clock buffering time

PM 802F PM 803F

New battery inserted ≥ 1.5 years  without buffering

After “Low” warning ≥ 10 days

Battery 3.6 V lithium battery, 950 mAh

(not in the delivery)

Weight approx. 0.150 kg (without battery)