ID 442710.00 24WE KEEP THINGS MOVING
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6
Operation manual PROFINET
The stated device classes exchange parameter and configuration data via the
standard communication channel, process data and alarms via the real-time
channel (process data channel).
6.2.2 Device addressing
All PROFINET IO subscribers are based on the Industrial Ethernet-Standard,
i.e. they require a unique IP address for data exchange.
To be able to address IO devices in the PROFINET IO system, they require a
unique device name: only after the assignment of a name can an IO device be
addressed by an IO controller.
In the course of the hardware project configuration in the TIA Portal, the IO
devices receive device names that are transferred to the IO controller. These
are assigned corresponding IP addresses when starting up the IO devices.
For a device type from the 6th generation of STOBER drive controllers, the
stated values are written in the following parameters:
• A274 PN IP address
• A275 PN Subnet mask
• A276 PN Gateway
The relevant STOBER-specific MAC address can be read in the drive controller
via parameter A279 PN MAC addresses.
Further information for PROFINET networking
MAC address
A MAC address consists of a fixed and a variable part. The fixed part identifies
the manufacturer and the variable part distinguishes between the individual
Ethernet subscribers and must have a unique global assignment.
IP address – Value range
An IP address always consists of 4 decimal numbers within the value range 0
– 255 separated by a period. It must be unique within a (sub)network.
Subnets and subnet masks - Value range
The formation of subnets is used to provide autonomous networks with their
own address range; each IP address is divided into a network and host
address. The subnet mask determines the place where this division occurs.
The subnet mask consists of 4 decimal numbers within the value range 0 – 255
separated by a period – in the same way as the IP address.
Conventions for device names
Observe the following conventions for the definition of device names:
• The device name must be limited to a maximum of 240 characters. Letter,
numbers, periods and hyphens are allowed.
• A component of the name, i.e. a character sequence between 2 periods,
may have a maximum of 63 characters.
• Special characters such as umlauts, brackets, question marks, slashes,
space characters, etc. are not allowed.
• The device name must not start with a number.
• The device name must not start with the characters "-" or "." and also must
not end with these.
• The device name must not have the form n.n.n.n (n = 0...999).
• The device name must not start with the character sequence "port-xyz-" (x,
y, z = 0...9).
• An underscore is a prohibited character.
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