NORSTAT Safety Relays - Handbuch (Seite 147)

application guide safety relays from riese electronic page 143
11 Application examples for – bus module
a) AS-Interface
Simple bus-system or fieldbus-applications.
Most times it would be used for sensors.
Characteristic:
ƒ Master-Slave system
ƒ Power supply and signal transfer on the same two wires (yellow ASi wire)
ƒ Very safety and less sensible bus transfer
ƒ Up to 62 bus slaves on only one master are possible
ƒ Each kind of bus structure is possible Æ tree structure
ƒ Maximal length of the ASi wire 100m and 300m with repeaters
ƒ Different dealer for busmaster (stand alone devices or PC-Interfaces) offer their products
ƒ By using form Interface modules the connection to a higher bus system is possible.
FA1 ASI bus interface
The FA1 could be used for industrial ASi-Networks in connection with RS-NAGU.1b.
NORSTAT INC. 300 Roundhill Dr. Rockaway, NJ 07866 Tel: 973-586-2500 Fax: 973-586-1590 www.norstat.com