GE EP-5261 User Manual page 20

20
GFK-2992B
FB_MBM_RTU_Master Output Variables
Variable
xMBMasterFirstCycle
xComPortActiv
xMODtransActive
xMODtransOk
usiMODslaveAdrDone
usiMODfcDone
uiMODdatOffDone
uiMODdatNrDone
usiMODfailCode
xEnableRx
xEnableTx
xQuitt
TXBUF_FLUSH
RXBUF_FLUSH
TXBUF_DISABLE
RX_BYTECNT
TX_BYTECNT
Possible Output
Variable
Error code
Note: FB_MBM_RTU_Master uses and calls the auxiliary function block ModbusMaster_CoilMax (included in the library).
Type Description
BOOL Flag first cycle: set to a value of 1 after the first cycle
BOOL Status of COMport, MODBUS is activated
BOOL MODBUS transmission is active
BOOL MODBUS request is answered OK
BYTE Last addressed MODBUS slave
BYTE Last Function Code
WORD Last offset addr. of MODBUS register
WORD Last number of MODBUS register
BYTE MODBUS fail code
BOOL Responding Bit of FB_RSTI_EP_5261: Start/Enable Receive
BOOL Responding Bit of FB_RSTI_EP_5261: Start/Enable Send
BOOL Responding Bit of FB_RSTI_EP_5261: Error acknowledge
BOOL Responding Bit of FB_RSTI_EP_5261 flush the transmit buffer of RST- EP-5261
BOOL Responding Bit of FB_RSTI_EP_5261: flush the receive buffer of RSTi EP-5261
BOOL Responding Bit of FB_RSTI_EP_5261: Disable Tx hard buffer
WORD Responding CNT of FB_RSTI_EP_5261: Byte counter of received bytes of RSTi EP-
5261
WORD Responding CNT of FB_RSTI_EP_5261: Byte counter of transmitted bytes of RSTi
EP-5261
usiMODfailCode Description
0 No error
1 MODBUS: Illegal Function Code
2 MODBUS: Error Data address
3 MODBUS: Error Data value
4 MODBUS: Error telegram length
10 Parameter error of the function block
11 COMport open/initializing failed
12 MODBUS: CRC Error
13 MODBUS: Time out
14 MODBUS: Error slave address
15 MODBUS: Slave indicates incorect Function Code
16 MODBUS: Slave indicates incorrect number or address of register
RSTi-EP Slice I/O Serial Communication Module
For public disclosure