STRING_TO_ETLANADDR_STEPSAVER

This function converts a STRING in IP address format into a value of the data type DWORD.

Parameters

Input

Unnamed input (STRING)

Input data type

Output

Unnamed output (DWORD)

Conversion result

Remarks

• 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.

• The function uses for approx. 50 steps of generated code the basic instructionF76_A2BIN. The instruction expects that each octet consists of three characters with leading zeros. Otherwise the PLC delivers an operation error.

Permissible format: 'Octet1.Octet2.Octet3.Octet4[Space]', e.g.: ' [192.168.206.4] '

Permissible characters Octets 1-4:

Decimal numbers "0“-"9“, maximal 3 positions, with or without leading zeros in the range 0-255