9.2.2 StecaLink master connection
1. Set a unique slave address on the device with the StecaLink slave connection, see section
14.3.9.1 'StecaLink slave address setting'.
2. Plug the slave device into the StecaLink master connection. Connect the 'MASTER for Steca-
Link Bus' connection to the 'SLAVE IN for StecaLink Bus' connection.
3. If further slaves shall be connected, connect them via the slave device, at its free 'SLAVE OUT
für StecaLink Bus' connection.
NOTICE!
– The StecaLink master connection is an RS-485 communication interface using a proprietary
bus protocol.
– The StecaLink master connection allows the connection of subordinate communication
partners.
– The StecaLink slave devices connected to the StecaLink master connection are controlled by
the Tarom 4545 / Tarom 4545-48 as communication master.
– E.g. external current sensors PA HS400 can be connected to the StecaLink master connecti-
on.
– A standard RJ45 network cable (CAT-5 Patch cable, 1:1) is used for connecting StecaLink
communication bus members.
– Termination plugs for the StecaLink communication bus are available as accessories.
The communication network connected to the StecaLink master must be terminated at the
last free StecaLink slave connection.
– No further StecaLink master may be used in the communication network that is connected
to the StecaLink master connection.
– The Tarom 4545 / Tarom 4545-48 can manage a maximum of 5 PA HS400 units.
– Each slave must have its own unique address within a range of 1 to 99. No duplicate ad-
dresses may be present. Set the address of the slave according to the slave manual.
– The maximum length of the entire bus cabling should not exceed 25 m.
– The controller:
– has 1 StecaLink master connection,
– has 2 StecaLink slave bus connections,
– is always the master at the StecaLink master connection.
ATTENTION!
Tarom 4545 / Tarom 4545-48 devices can only communicate via the StecaLink bus if they have
a serial number from 757324 / 757325 or higher, as well as a APP software version 1.7.0 or
higher.
It is never permitted to integrate more than one Tarom 4545 / Tarom 4545-48 in a StecaLink bus
because otherwise dangerous compensation currents may occur!
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