Siemens 7XV5550-0xA00 Series, Руководство пользователя

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14.01.2002 Active Mini-Starcoupler Page 9 from 52
1 Application and short functional description
The Active Mini-Starcoupler is designed for universal use in applications
with serial interfaces, where one or several devices with different serial
baudrate and data frame shall be linked together. It´s an active, serial
port-switcher, where you can switch from one or more selectable input
interfaces (Master interfaces) with an ASCII sequence to one output
interface (Slace interface).
With a terminal program or a customer
specific software on a PC, 128 Slave-interfaces can be selected from a
central unit (normally a PC) and the communication between the central
unit and the device runs over the port-switcher. At each Slave-interface
one not addressable device or several by protocol addressable devices
can be connected. Even the remote control via a modem connected to a
Master-interface is possible. For each Slave-interface a channel number
is parametrized in the Active Mini-Starcoupler. Furthermore the serial
data format, the baudrate and the data frame can be set individually for
each Slave-interface.
No hardware handshake for the serial interfaces is supported. The data-
traffic between the master unit at the Master-interface to the devices at
the Slave-interfaces must be controlled by a user defined protocol (e.c.
protocol with device addresses or ASCII-protocol with XON/XOFF
sequences).
Through the wide range power supply, which allows the connection to all
common types of AC voltage supplies (AC: 110V / 230V) and DC
batteries (DC: 24V –250V) and through the electromagnetic, disturbance
free optical interfaces, the Active Mini-Starcoupler has favourite design
features for the use in the industrial field and for serial applications
together with protection and substatation control.
It allows the central and remote interrogation :
-
Of non-addressable devices. Each at one Slave-interface (e.c.
devices with ASCII – protocol like relays of version 1 or 2 from
SIEMENS).
-
Of several addressable devices with common interface parameters
on one Slave-interface (Over protocol identified devices like relays
of version 3 and 4 from SIEMENS)
-
Common operation with non–addressable and addressable devices
in a communication topology from a master unit.
- Of devices with different baudrate and data frame.