Operation Manual EMGZ 490
15.12.2015
13
5
Integration in a PROFINET-network
The force measuring amplifiers of the EMGZ 490 series were design to work in an
PROFINET-network whereas the amplifier acts as an IO-device (Slave) and die IO-
Controller (or PLC) as a master.
5.1
PROFINET Interface
PROFINET RT is supported. The corresponding communication profile will be selected by
the IO-controller (Master) via GSD. The EMGZ 490 transmits the feedback value in Digit
and the Status/Error information Byte. In addition parameters like Offset feedback,
Gain feedback, Filter feedback, Filter analogue output and Scaling of the output can be
set.
5.2
MAC - Address
The MAC-address is a unique address for all devices in the Ethernet network. It is
composed of a manufacturer and an adapter identifier. The MAC-address is part of the
network card of the corresponding device. It is set at the factory for each EMGZ 490
device and subsequently it cannot be changed. The MAC-address is lost after a firmware
update. It must be re-assigned in accordance with the assignment procedure.
5.3
Assignment of MAC - Addresses
After loading the firmware in the EMGZ 490 device the first time, the MAC-address is
not assigned yet. The assignment is carried out via the web interface and is mandatory
for each EMGZ 490. At power-up of the device, it is checked whether a MAC-address
was assigned or not.
Since the MAC-address assignment is handled via the web interface also the IP-address
is of importance. The latter is defined according to the device conditions. As long as the
device has no MAC-address, the IP-address is set fix to 192.168.0.90. With this method
a PC which is in the same network can access over a web browser the web interface of
the EMGZ490. The following table indicates which MAC- and IP-addresses are used in
relation to the device status.
