GE EP-5261, User Manual

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16 RSTi-EP Slice I/O Serial Communication Module
GFK-2992B
FB_RSTi_EP-5261 Input Variables
Variable Type Description
xEnableRecv BOOL Enables receive data: 0 = Receive disabled, 1 = Receive enabled
xEnableSend BOOL Enables send data: 0 = Send disabled, 1 = Send enabled
xQuit BOOL Acknowledgement of errors
xClr_Buf_Rx BOOL Flushes receive buffer : 0 to 1 and Quit = 1
xClr_Buf_Tx BOOL Flushes the send buffer : 0 to 1 and Quit = 1
xDisableTxHWBuffer BOOL Disables the hardware (HW) transmit buffer: 0 = released , 1 = disabled
uiMaxRecvData UINT
Maximum number of the data byte to be received within one telegram. Can be
changed before a new job according to the expected telegram length.
Note: Must be > 0. If not, data will not be received.
uiMaxSendData UINT
Maximum number of the data byte to be transmitted within one telegram. Can be
changed before a new job according to the expected telegram length.
Note: Must be > 0. If not, data will not be transmitted.
InputOfModule ARRAY [0..7] OF INT
Process input data of the module . Data type is INT.
OutputOfModule ARRAY [0..7] OF INT
Process input data of the module. Data type is INT.
RxDataBuffer ARRAY OF BYTE
Address of the buffer that receives data within the PLC. Array of n elements of
data type BYTE. Currently fixed to 400 bytes.
TxDataBuffer ARRAY OF BYTE
Address of the buffer that transmits data within the PLC. Array of n elements of
data type BYTE. Currently fixed to 400 bytes.
FB_RSTi_EP-5261 Output Variables
Variable Type Description
xBusyRecv BOOL Displays an active data reception
xRecvDone BOOL Displays finished data reception. Remains TRUE until
xEnableRecv
is TRUE.
uiRecvDataCnt UINT Counter for the received data bytes
xBusySend BOOL Displays active data transmission
xSendDone BOOL Displays finished data transmission. Remains TRUE until
xEnableSend
is TRUE.
uiSendDataCnt UINT Counter for transmitted data bytes
xRxHWBufNotEmpty BOOL Indicates that the hardware receive buffer is not empty
xErrorFlag BOOL Displays a general error. Can be reset by acknowledging the variable
xQuit
.
wRetVal WORD Return Value: value is > 8000h to error
Possible Output
Variable
RetVal
Description
Warnings
16#0000 No error
16#0001 Receive buffer not empty
16#0002 Handshake (CTS or XOFF) ON
16#0003 Receive buffer not empty and handshake (CTS or XOFF) ON
Errors
16#8000 Module not ready for communication. Check the address of variable
InputOfMdule
.
16#8008 Indicates a parameter fault. Check the parameter choice in the PLC configuration.
16#8010 Indicates a hardware fault. Replace the hardware.
16#8020 Indicates fault data flow control. Check the parameter in the PLC configuration.
16#8040 Indicates frame fault. Check the parameter choise in the PLC configuration.
16#8080 Indicates (receive)buffer overflow of EP-5261 module. Check the communication.
16#80C0
Indicates (receive)buffer overflow and frame fault of EP-5261 module. Check the
communication.
16#8101 Size of receive buffer is > maximum number of received bytes ==> FB abort.
16#8201 Size of send buffer is > maximum number of bytes to be sent ==> FB abort.
For public disclosure