AED System Digital Transducer Electronics
6.3 AED9301B basic device
The AED9301B basic device extends the functionality of the AD amplifier
board and provides:
• mechanical protection (IP65)
• a slot for the AD103C amplifier board
• a voltage supply for the amplifier board and transducer excitation (5 V
(electrically isolated)
• total transducer bridge resistance u 80 Ω ... 4000 Ω
• a PROFIBUS interface (electrically isolated from the amplifier and from the
digital inputs / outputs)
• two digital inputs and four digital outputs (electrically isolated from the ampli-
fier and from PROFIBUS)
• EMC protection
Connector for
amplifier
PROFIBUS
light-emitting
diodes
Fig. 6: Mechanical construction of the AED9301B (for pin assignment and setup, see sticker in lid)
A1780−4.3 en/de/fr/es/it
Transducer
Address
connection
settings
Voltage supply
and digital I/O
PROFIBUS
Diagnostics bus
connection
13
)
DC
HBM