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. 

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)