FB_SMIDiscoverySlaveId
The first drive is sought that corresponds to the specified manufacturer code and has the address 0. This function block is used for addressing SMI devices and is used in the function block FB_SMIAddressing().
Inputs
VAR_INPUT
bStart : BOOL;
bCancel : BOOL;
byManufacturer : BYTE := 0;
dwOptions : DWORD := 0;
END_VAR
Name | Type | Description |
---|---|---|
bStart | BOOL | The function block is activated and the search is started by applying a positive edge to this input. |
bCancel | BOOL | The function block is deactivated and the search is aborted on applying a positive edge to this input. |
byManufacturer | BYTE | The manufacturer code specified for the search for the SMI device. Some SMI devices do not permit the manufacturer code 0. |
dwOptions | DWORD | Reserved for future extensions |
Inputs/outputs
VAR_IN_OUT
stCommandBuffer : ST_SMICommandBuffer;
END_VAR
Name | Type | Description |
---|---|---|
stCommandBuffer | Reference to the structure for communication (buffer) with the function block FB_KL6831KL6841Communication() |
Outputs
VAR_OUTPUT
bBusy : BOOL;
bError : BOOL;
udiErrorId : UDINT;
dwCurrentSearchSlaveId : DWORD;
eResSlaveAddrET0AndSlaveIdLTSerachId : E_SMICompResSlaveAddrET0AndSlaveIdLTSearchId;
eResSlaveAddrET0AndSlaveIdGTSerachId : E_SMICompResSlaveAddrET0AndSlaveIdGTSearchId;
eResSlaveAddrET0AndSlaveIdETSerachId : E_SMICompResSlaveAddrET0AndSlaveIdETSearchId;
eResSlaveAddrNE0 : E_SMICompResSlaveAddrNE0;
END_VAR
Name | Type | Description |
---|---|---|
bBusy | BOOL | This output is set as soon as the function block processes a command and remains active until the command has been processed. |
bError | BOOL | This output is switched to TRUE as soon as an error occurs during the execution of a command. The command-specific error code is contained in udiErrorId. The output is reset to FALSE by the reactivation of the function block via the input bStart. |
udiErrorId | UDINT | Contains the command-specific error code of the most recently executed command. It is reset to 0 by the reactivation of the function block via the input bStart (see error codes). |
dwCurrentSearchSlaveId | DWORD | As soon as the execution of the function block has ended (bBusy changes from TRUE to FALSE) this output indicates the slave ID of the SMI device found. |
eResSlaveAddrET0AndSlaveIdLTSerachId | At least one motor / no motor has the address 0 and the slave ID is smaller than the slave ID sought (dwSlave-Id) / the value is undefined. | |
eResSlaveAddrET0AndSlaveIdGTSerachId | At least one motor / no motor has the address 0 and the slave ID is larger than the slave ID sought (dwSlave-Id) / the value is undefined. | |
eResSlaveAddrET0AndSlaveIdETSerachId | At least one motor / no motor has the address 0 and the slave ID is also the same as the slave ID sought (dwSlave-Id) / the value is undefined. | |
eResSlaveAddrNE0 | At least one motor / no motor has an address unequal 0 / the value is undefined. |
Requirements
Development Environment | PLC library to include |
---|---|
TwinCAT from v3.1.4020.14 | Tc2_SMI from 3.3.5.0 |