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Mechanical and Electrical Configuration
This section discusses the following aspects of an ET 200U distributed I/O
station:
The degree to which you can expand a slave station is limited by the follow-
ing factors:
ET 200U Distributed I/O Station
EWA 4NEB 812 6087–02b
Installing a station mechanically
Wiring a station
Installing a station electrically
The number of modules you can connect
(a maximum of 16 bus units or 32 modules)
The addressing range of an ET 200U slave station
(a maximum of 32 input bytes and 32 output bytes)
The current consumption of the individual modules
(total current consumption from 9 V DC, I/O bus
700 mA at 60 C
900 mA at 40 C)
3
3-1
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