Siemens SIMATIC Distributed I/O System DP/ASi Link Manual page 140

Glossary
ID code The ID code is an additional identification, its use being optional for each
ASi slave. The ID code is specified for every ASi slave. The default value of
the ID code is 0.
IM 308-C The IM 308-C is a DP master for the Distributed I/O System.
IP 66 Degree of protection in accordance with DIN 40050: complete protection
against contact, protection against the ingress of dust and protection against
the detrimental ingress of heavy seas or high-pressure hose-water.
IP 67 Degree of protection in accordance with DIN 40050: complete protection
against contact, protection against the ingress of dust and protection against
the detrimental ingress of water of a certain pressure upon submersion.
M
Master
Masters, if they are token holding nodes, may send data to other nodes and
request data from other nodes.
Examples of DP masters are IM 308-C or the programmer. One ASi master is
the DP/ASi link, for example.
Master diagnosis The master diagnosis shows the diagnostic data of the DP master – for exam-
ple, what slave has a diagnostic message.
Master/slave
The master/slave method is a bus access procedure in which only one node is
method
P
Passive nodes
Passive nodes may exchange data with an active node only when requested to
do so by the latter (synonymous with slave).
PROFIBUS Process Field Bus, German process and field bus standard defined in the
PROFIBUS standard (EN 50170 Volume 2, PROFIBUS).
It specifies functional, electrical and mechanical characteristics for a bit-se-
rial field bus system.
Glossary-4
active at any time and all the others are passive.
Distributed I/O System DP/ASi Link
EWA 4NEB 710 6055-02b