IDEC SmartRelay installation and wiring
IDEC SmartRelay Manual 49
2.3.5 Connecting the AS interface bus
To set the address of the module on the AS interface bus,
you need an addressing unit.
Valid addresses are in the range of 1 to 31. Use each
address once only.
You
can set the address on the AS interface bus before or
after installation.
If th
e installed module is addressed via the address socket,
the AS-Interface voltage
must be disconnected beforehand.
This is necessary for safety reasons.
Networking on the AS interface bus
To make the connection to the AS interface bus, you need a
communications-capable
IDEC SmartRelay variant:
• IDEC SmartRelay base module + CM AS-I.
To be
able to send data across the AS interface bus to IDEC
SmartRelay a
nd to receive data from it in the same way, you
also need:
• an AS interface power supply and
• an AS interface master.
IDEC SmartRelay can only be accepted as a slave on the AS
inter
face bus. This mea
ns that it is not possible to directly
exchange data between two IDEC SmartRelay devices.
Data is always exchanged across the AS interface master.
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