Siemens SIRIUS System Manual

System overview
SIRIUS System Manual
1-24
GWA 4NEB 430 0999-02b
Replacement for the
cable harness
Process signals that occur in situ, are normally transferred to the open loop
control using extensive parallel wiring and input/output modules. This
means that each sensor or actuator in the field is connected to the input/
output modules with its own cable. AS-Interface makes it possible to
replace this cable harness with a simple two-wire cable for all sensors or
actuators.
Data and power on a
two-wire cable
The master communicates with the nodes via the AS-Interface cable. As
well as data, this cable also transfers the supply voltage for the electronic
components and sensors. The voltage is supplied to the AS-Interface cable
from a special AS-Interface power supply unit with a data link.
Setting up different
structures
The AS-Interface cable is laid in the same way as for an electrical installa-
tion. A new feeder can be inserted at any point. This makes it possible to set
up network structures (e.g. tree, star or line structures). No shielding or ter-
minating resistors are required. The wiring can be adapted individually to the
system or machine.
Detailed configuration and installation guidelines can be found in the instal-
lation guideline "Montage des Vernetzungssystems AS-Interface" (on mount-
ing the AS-Interface networking system).
Maximum system con-
figuration
Up to 62 nodes can be connected to the AS-Interface cable. A node is, for
example, an AS-Interface module (digital or analog) or a BERO (proximity
switch) with an integrated AS-Interface chip. A maximum of 4 binary stan-
dard sensors and/or 4 actuators can be connected to an AS-Interface mod-
ule.
This produces a maximum configuration of 248 sensors and 186 actuators
(62 nodes x 4 inputs and 3 outputs).
IP 67 degree of
protection
AS-Interface is a networking system for direct use on the machine. The AS-
Interface user compact modules have IP 67 protection. They can be used in
situ without being enclosed.
There are also AS-Interface modules for use with IP 20 protection in the
cubicles or distributed switchboxes.

Siemens SIRIUS Specifications

General

Product brand name	Siemens
Series	SIRIUS
Coil Voltage	24V DC, 110V AC, 230V AC
Switching Capacity	Up to 10A
Mounting Type	DIN rail
Product designation	SIRIUS
Contact Material	Silver alloy
Contact Rating	Varies depending on the specific SIRIUS relay model (e.g., 6 A at 250 V AC, 10 A at 250 V AC)
Switching Voltage	Varies depending on the specific SIRIUS relay model (e.g., 250 V AC, 400 V AC)
Mechanical Life	Up to 10 million operations
Electrical Life	Up to 100, 000 operations
Operating Temperature	-25°C to +55°C
Protection Class	IP20
Size of relay base	Varies depending on the specific SIRIUS relay model