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AS-i/INTERBUS Gateway
6170
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transmission. The AS-i/INTERBUS gateway operates in a pure server mode in this
case, i. e. it understands certain commands the client can send. The client is al-
ways the INTERBUS master.
Data transmission via the PCP channel can require
a number of words per command. These words are sent in consecutive cycles of
INTERBUS.
7.2 INTERBUS Interface
The AS-i/INTERBUS gateway communicates with the INTERBUS master in three
ways, as described in section 3.1. In total, the AS-i/INTERBUS gateway occupies
according to the configuration 16 words on INTERBUS, the location of which in the
interface board or the controller board of the INTERBUS master is a consequence
of the INTERBUS cabling.
The process data channel occupies 16 words (process data channel plus control
and status word) as described in see chapter 7.1.2 and 7.1.3. The PLC or similar
can address the sensors and actuators through this channel as if they were con-
nected conventionally with parallel wiring.
The INTERBUS master and AS-i/INTERBUS gateway communicate with each
other on a simple, rapid basis using the control word and data word. See chapter
7.1.3 for details.
Following functions can executed via PCP:
• Setting the parameters for AS-i slaves and reading their configuration data;
• Configuring AS-i slaves, i. e. storing the desired state of the AS-i network in the
AS-i/INTERBUS gateway;
• Reading the stored data;
• Setting the operating mode (configuration mode, protected mode);
• Modifying the operating address of an AS-i slave;
• Reading the current configuration of the AS-i network;
• Reading the advanced diagnosis data;
• Reading and writing analog data.
Naturally, the gateway has all the functions necessary for its tasks as INTERBUS
slave and INTERBUS server.