ModTcpServOnOff (FB)
FUNCTION_BLOCK ModTcpServOnOff EXTENDS AbbETrig3
Function Block serves to set Modbus TCP server to active/passive
- InOut:
Scope
Name
Type
Initial
Comment
Inherited from
Input
ExecuteBOOLFALSE
A rising edge starts a single operation, the output Busy goes to TRUE. In the first cycle all other inputs are read and stored, afterwards they are ignored. A falling edge does not stop the operation. After Done = TRUE or Error = TRUE and Execute = FALSE all outputs will be reset. For executing another operation the Execute input needs to be retriggered by another rising edge!
AbbETrig3
Output
DoneBOOLFALSE
Operation is completed without error (while outputs Busy and Error are FALSE). This output is TRUE for at least one cycle or until Execute is set to FALSE
AbbETrig3
BusyBOOLFALSE
Operation is running (while outputs Done and Error are FALSE)
AbbETrig3
ErrorBOOLFALSE
Operation is stopped with error (while outputs Busy and Done are FALSE). This output is TRUE for at least one cycle or until Execute is set to FALSE. The output ErrorID gives more details about the error.
AbbETrig3
Input
EthBYTEETH1
Index number of the assigned interface
OnBOOLTRUE
Switch on (TRUE) or off (FALSE) server
Output
ErrorIDERROR_ID.NO_ERROR
Error code describing error conditionNO_ERROR - Execution successfully completedERR_INVALID_INTERFACE - Invalid Ethernet interface or no Server configured on Ethernet interfaceERR_ALREADY_IN_STATE - Server already in requested stateERR_SIMULTANEOUS_ACCESS - Server already accessed by other FB instance, try again later onERR_FAILED_SET_STATE - Failed to set Server to requested stateERR_INTERNAL_UNEXPECTED_STATE - Unexpected state. Fatal internal errorERR_UNKNOWN - Undefined error