Siemens SIMATIC Distributed I/O System DP/ASi Link Manual page 137

Glossary
A
Active nodes
Active nodes may send data to other nodes, if they are token holding nodes,
and request data from other nodes (synonymous with master).
Actual By actual configuration we mean the true configuration of the ASi as de-
configuration
tected by the DP/ASi link.
ASi
ActuatorSensor Interface. The Actuator Sensor Interface is a networking
system for the lowest range of automation levels It is suitable for networking
binary actuators and sensors.
ASi address
The ASi address uniquely identifies every ASi slave within the ASi. The ASi
master addresses an ASi slave by means of its ASi address.
ASi address 0
ASi address 0 has a special meaning in the ASi:
ASi cable
The ASi cable is a specially shaped two-wire cable incorporating reverse po-
larity protection and connecting
transmitting information and auxiliary power.
ASi configuration
ASi configuration data contain the
data slave. They characterize the characteristics of the ASi slave.
ASi master
and coordinates data transmission from and to the ASi slaves.
ASi slave
and the connected actuators and sensors. ASi slaves transmit data to the ASi
master only upon the latter's specific request.
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b
It is the default address with which every ASi slave is supplied ex works.
It is required to assign a new address to an ASi slave.
Master. The ASi master is the control and monitoring unit that monitors
Slave. ASi slaves are the interfaces between the higher-level ASi master
ASi slaves and the ASi master for
I/O code and the ID code of an ASi
Glossary-1