FB_MDP_Device_Read_DevName
The function block enables the device name to be queried. This information is in the General Area of the MDP. (General information on the MDP information model)
VAR_INPUT
VAR_INPUT
bExecute : BOOL; (* Function block execution is triggered by a rising edge at this input.*)
tTimeout : TIME := DEFAULT_ADS_TIMEOUT; (* States the time before the function is cancelled. *)
sAmsNetId : T_AmsNetId; (* keep empty '' for the local device *)
END_VAR
bExecute | The function block is called by a rising edge on the input bExecute, if the block is not already active. |
tTimeout | Specifies a maximum length of time for the execution of the function block. |
sAmsNetId | For local access don't specify this input or allocate an empty string. For remote access to another computer specify its AMS Net Id. |
VAR_OUTPUT
VAR_OUTPUT
bBusy : BOOL;
bError : BOOL;
nErrID : UDINT;
sDevName : T_MaxString;
END_VAR
bBusy | This output is TRUE as long as the function block is active. |
bError | Becomes TRUE as soon as an error situation occurs. |
nErrID | Returns an error code if the bError output is set. |
sDevName | The queried name is output as a string at this output. |
Requirements
Development environment | Target platform | PLC libraries to be linked |
---|---|---|
TwinCAT v2.11.0 Build >= 1541 | PC or CX (x86, ARM) | TcMDP.Lib |