ET 200eco PN
Operating Instructions, 08/2016, A5E01250250-AJ
265
Configuration protocol in the Fast Ethernet. Before the actual data transmission, the devices
on the network agree a transfer mode that each participating device can master (100 Mbps
or 10 Mbps, full-duplex or half-duplex).
The speed at which data is transferred. It indicates the number of bits transferred per second
(baud rate = bit rate).
Data transfer bus to which all nodes are connected. It has two defined ends.
ET 200 features a 2-wire bus.
Physical connection between the bus node and the bus cable.
Chassis ground includes all the interconnected inactive parts of equipment that must not
carry a hazardous voltage even in the event of a fault.
Because a fixed IP address is assigned to the device name, an IO Device must have a
device name in order to be addressed by an IO Controller. With PROFINET, this procedure
is used because names are easier to handle than complex IP addresses.
The assignment of a device name for a specific IO Device can be compared with the setting
of the PROFIBUS address for a DP slave.
In the state of delivery a IO Device has no device name. The IO Device can only be
addressed for an IO Controller after the device has been assigned a device name with the IO
Supervisor/PC, for the transfer of configuration data (IP address and other data) during
startup or for the exchange of user data in cyclic operation, for example.
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