216EA61b 216EA62 ABB Spot warranty

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Equipment rack 216MB66/216MB68 and

parallel bus B448C

The main features of the parallel bus B448C

are:

• Specification based on IEEE P 896 (future

bus)

• Time multiplexing of addresses and data

(16 bit)

• Asynchronous data transmission with

handshake

• Integrity checking of each data exchange.

• Up to 32 master units having equal status,

actively accessing the bus

• Common internal 24 V auxiliary supply

for all electronic units; redundant 24 V are

possible.

Processing unit 216VC62a

• 32 bit processor type 80486DX-2

• Application software on Flash EPROM

• Operating data on RAM

• Settings on non-volatile Flash EPROM

• Potential-free RS-423 interface for PC

operation

• Connection to the station control with

transmission of messages

• Time clock synchronizing for time-tagging

of events

• Non-volatile event and disturbance memory (gold capacitor buffered)

• Space requirement: two rack divisions.

Analog Input unit 216EA62

• 24 inputs sampled simultaneously in

groups of six

• Sampling frequency 600 (720) Hz for a

power frequency of 50 (60) Hz

• Space requirement: two rack divisions.