Festo CECX-X-C1 Series, Manual

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The Festo_EasyIP.lib library
9
1.4 Internally used variables, constants and Help functions
1.4.1 Global variables
The following global variables for internal library functions are created in the Festo_EasyIP.lib library and
cannot be modified.
Identifier Data type Value Description
IPTable ARRAY[0..MAXIPTABLEINDEX]
OF DINT
EasyIP address table (short
addresses assigned to IP
addresses)
EasyIPInit INT 0 EasyIP initialisation status
EasySockDesc DINT 0 EasyIP socket descriptor (assigned
by the library when the socket is
opened)
EasyState ARRAY[0..MAXIPTABLEINDEX]
of EasyStatus
EasyIP status field for every IP
address
TimeOutTime UINT 1 EasyIP timeout time (set by the
timeout function)
MaxFlags DWORD Size of the flag area (set when the
Easy_Server program is initialised)
MaxInp DWORD Size of the input area (set when the
Easy_Server program is initialised)
MaxOutp DWORD Size of the output area (set when
the Easy_Server program is
initialised)
pFlag DWORD Pointer indicating the start (offset 0)
of the flag area (set when the
Easy_Server program is initialised)
pInput DWORD Pointer indicating the start (offset 0)
of the input area (set when the
Easy_Server program is initialised)
pOutput DWORD Pointer indicating the start (offset 0)
of the output area (set when the
Easy_Server program is initialised)
StringTable ARRAY[0..MAX_STRING_IDX]
OF STRING(STRING_SIZE)
String table
UdpRcvBuffer ARRAY [0..1023] OF BYTE Receive buffer for UDP package
UdpRcvBufferSize DINT 1000
UdpSendBuffer ARRAY[0..1023] OF BYTE Send buffer for UDP packet
UdpSendBufferSize DINT 1000
BigEndian BOOL FALSE Byte order in the target system (set
when the Easy_Server program is
initialised)
NonBlockingSocket BOOL TRUE Changes the mode of the socket to
non blocking, can be overwritten in
the system event 'Start'.