MC_AxAdsCommServer_BkPlcMc (from V3.0)
The function block gives the application the capacity to function as an ADS server. Calls function blocks of type MC_AxAdsReadDecoder_BkPlcMc and MC_AxAdsWriteDecoder_BkPlcMc as required. The ADS codes are listed in the Knowledge Base.
Inputs
VAR_INPUT
nFirstAxisIndex: INT;
nLastAxisIndex: INT;
END_VAR
Name | Type | Description |
|---|---|---|
nFirstAxisIndex | INT | This parameter is used to specify the dimensioning of the Axis_Ref_BkPlcMc array. An incorrect specification at this point excludes some of the axes from the communication or results in a crash of the PLC application by triggering serious runtime errors (Page Fault Exception). |
nLastAxisIndex | INT |
Inputs/outputs
VAR_INOUT
pAxItf: POINTER TO Axis_Ref_BkPlcMc;
END_VAR
Name | Type | Description |
|---|---|---|
pAxItf | POINTER | Here, the address of a variable or an array of variables of type Axis_Ref_BkPlcMc should be transferred. |
Outputs
VAR_OUTPUT
PlcMcManOffline: BOOL;
END_VAR
Name | Type | Description |
|---|---|---|
PlcMcManOffline | BOOL | This parameter corresponds to the parameter of the same name of the MC_AxAdsCommServer_BkPlcMc function block. |
Behavior of the function block
Through cyclic calling of this function block in the PLC application, the application assumes the character of an ADS server and responds to ADS read and ADS write-access like any other ADS server. This includes the decoding of IdxGroup/IdxOffset addressing. Function blocks of type MC_AxAdsReadDecoder_BkPlcMc and MC_AxAdsWriteDecoder_BkPlcMc are called as required.
 | This function block must not be used if the PLC application already is an ADS server. |
In this case the function blocks of type MC_AxAdsReadDecoder_BkPlcMc and MC_AxAdsWriteDecoder_BkPlcMc should be called from the existing ADS server function block of the application.