CX8030 ADS Interface
ADS NetId of the PROFIBUS interface
A NetId is required for the ADS communication. This can be found in the ADS tab of the PROFIBUS interface in the TwinCAT System Manager.
ADS Interface
All acyclic data are transmitted to or from the CX8030 via ADS-Read, ADS-Write or ADS-Write-Control. The CX8030 has its own Net-ID and supports the following ports:
Port | Description |
|---|---|
200 | Addresses the PROFIBUS interface itself, i.e. data stored locally on the PROFIBUS interface, for which usually no additional bus access is required. |
0x1000 - 0x107E | Addresses a connected PROFIBUS device, whereby the address is calculated from port 0x1000 (or 0x1000 + slave address); always includes bus access. |
ADS-Read
An overview of the IndexGroups/IndexOffsets supported by the CX8030 during ADS-Read is provided below.
IndexGroup for local CX8030 addressing (port 200)
IndexGroup | IndexGroup | IndexOffset | Description |
|---|---|---|---|
0xF181 | 0x0000-0x007E | BYTE offset within the data | This will read the diagnostic data of a configured DP slave. The station address is calculated from the IndexGroup(Hi-Word). If the ADS Read is answered without error (error code = 0), the data will contain the diagnostic data of a configured DP slave described in section Slave Diagnosis. |
0xF830 | 0x0000-0x007E | always 0 | Can be used to determine which DP slaves are present on the PROFIBUS, regardless of whether they were configured or not; the station address is entered in the IndexGroup (high word). If the ADS-Read is answered without error (error code = 0), the corresponding DP slave has answered correctly. The data contain the Ident no. of the slave (BYTE offset 0-1) and the read CfgData (from BYTE offset 2). |
IndexGroup for addressing of a configured PROFIBUS device (port 0x1000-0x107E)
IndexGroup | IndexGroup | IndexOffset | Description |
|---|---|---|---|
0x00-0xFF | 0x00 | 0x00-0xFF | This will send a DPV1-Read to the appropriate, configured DPV1 slave via a Class -1 connection; the DPV1 slot number corresponds to the IndexGroup, the DPV1 index corresponds to the IndexOffset. If the ADS-Read is answered without error (error code = 0), the data will contain the read DPV1 data (see section DPV1) |
ADS Write
An overview of the IndexGroups/IndexOffsets supported by the CX8030 during ADS-Write is provided below.
IndexGroup for addressing of a configured PROFIBUS device (port 0x1000-0x107E)
IndexGroup | IndexGroup | IndexOffset | Description |
|---|---|---|---|
0x00-0xFF | 0x00 | 0x00-0xFF | This will send a DPV1-Write to the appropriate, configured DPV1 slave via a Class -1 connection; the DPV1 slot number corresponds to the IndexGroup, the DPV1 index corresponds to the IndexOffset (see section DPV1). |
ADS-WriteControl
An overview of services supported by the CX8030 for ADS WriteControl is provided below.
ADS-WriteControl for addressing a configured PROFIBUS device (port 0x1000-0x107E)
AdsState | DeviceState | State of the FC310x/EL6731 | Description |
|---|---|---|---|
STOP (6) | 0x00 | RUN (5) | This will stop the slave, i.e. the process data connection to the relevant DP slave (Data_Exchange) is removed (with SetPrm,Unlock). |
RUN (5) | 0x00 | STOP (6) | This will restart the slave after a stop, i.e. the process data connection to the relevant DP slave (Data_Exchange) is re-established (normal DP start-up). |