Gateway Component for PROFINET
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5 Configuration
5.1 Supported size of process data
The gateway component for PROFINET supports an input and output
area of 512 bytes each:
– The first 320 bytes of each area are intended for the exchange of cycli-
cal process data.
– The remaining 192 bytes can be used for acyclic data exchange
(records).
NOTICE
Bear in mind that the maximum length of the process data is always
determined by the fieldbus with the shorter data length.
5.2 Setting Station Name
Since names are easier to handle than complex IP addresses in most
cases, you can assign a station name to the gateway component.
You set the station name using the software of your PROFINET
controller.
According to the definition RFC 5890, attention must be paid to the
name assignment rules in this regard:
– Data should be specified in the Octet string type
– Restriction to a total of 240 characters (letters "a" to "z", numbers "0" to
"9", hyphen or dot)
– A name element of the device name must be separated with a dot and
can have a maximum of 63 characters.
– No special characters such as umlauts, brackets, underscore, blank etc.
– The hyphen is the only special character allowed.
– The device name must not begin or end with a dot.
– The device name must not begin with numbers.
– The device name must not have the form n.n.n.n ( n = 0...999 ).
– The device name must not begin with the character string "port-
xyz-" ( x,y,z = 0...9 ).
– The device name may only begin with "xn-" if the original character
string contains values other than "0" to "9" and "a" to "z".
– The field "NameOfStationValue" must not end with 0.
Examples of valid names:
"device
-1.machine-
1.plant-
1.vendor"
"mühle1.ölmühle1.plant.com" is coded as " xn–mhle1-kva.xn–lmhle1 -
vxa4c.plant.com"
Configuration
