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STRING_TO_ETLAN
ADDR_STEPSAVER
This function converts a STRING in IP address format into a value of the data type DWORD.
Description
The function uses for approx. 50 steps of generated code the basic instruction F76_A2BIN (see
page 637). The instruction expects that each octet consists of three characters with leading zeros.
Otherwise the PLC delivers an operation error.
To add an enable input and enable output to the instruction, select [With EN/ENO] from the
"Instructions" pane (LD, FBD or IL editor). To reuse an instruction select "Recently used" from the
context menu or press <Ctrl>+<Shift>+<v> in the programming window.
Example:
Permissible format:
'Octet1.Octet2.Octet3.Octet4[Space]', e.g.: ' [192.168.206.4] '
Permissible characters:
Octets 1-4
If the format is wrong the result is 0.
The conversion is such that the highest byte of the ET-LAN address
represents the first octet and lowest byte of the IP address the fourth
octet. This format for ET-LAN addresses is used, for example, by the FP
Serie's ET-LAN modules.
STRING (IP-address format 00a.0bb.0cc.ddd) to ETLAN Address
Decimal numbers "0"-"9", maximal 3 positions, with or without leading
zeros in the range 0-255
Conversion instructions
251
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