Process data overview
Manual process data assignment is necessary for TwinCAT up to version 2.10.
Sync Manager (SM)
The extent of the process data that is made available can be changed via the “Process data” tab (see Fig. Process data tab SM2, EL2596 (default)).
The PDOs from the range 0x160n (0x1600 to 0x1604) can be assigned to the Output SyncManager 2, see fig. Process data tab SM2, EL2596 (default).
The PDOs from the range 0x1A0n (0x1A00 to 0x1A02) can be assigned to the Input SyncManager 3. See fig. Process Data tab SM3, EL2596 (default).
Not all combinations are technically useful.
Manual PDO Assignment
To configure the process data, select the required Sync Manager (SM 2 + 3) in the “Sync Manager” field at the top left (see Fig. Process data tab SM3, EL2596 (default)). The process data assigned to this Sync Manager can then be switched on or off in the “PDO Assignment” box underneath. Restarting the EtherCAT system, or reloading the configuration in Config mode (F4), causes the EtherCAT communication to restart, and the process data is transferred from the terminal.
SM2, PDO Assignment 0x1C12 | ||||
|---|---|---|---|---|
Index | Index of excluded PDOs | Size (byte.bit) | Name | PDO Content |
0x1600 (default) | - | 2.0 | DOX Control | 0x7000:01 - Enable |
0x1601 | 0x1605 | 2.0 | DOX Current | 0x7000:11 - Output current |
0x1602 | - | 4.0 | DOX Impulse length | 0x7000:12 - Impulse length |
0x1603 | - | 4.0 | DOX Trigger delay | 0x7000:13 - Trigger delay |
0x1604 | - | 2.0 | DOX PWM duty | 0x7000:14 - PWM duty |
0x1605 | 0x1601 | 2.0 | DOX Voltage | 0x7000:15 - Output voltage |
0x1606 | - | 8.0 | DOX DC start time | 0x7000:16 - DC Start time |
0x1607 | - | 2.0 | DOX Trigger out delay | 0x7000:17 - Trigger out delay |
SM3, PDO Assignment 0x1C13 | ||||
|---|---|---|---|---|
Index | Index of excluded PDOs | Size (byte.bit) | Name | PDO Content |
0x1A00 (default) | - | 2.0 | DOX Status | 0x6000:01 - Ready to activate |
0x1A01 | - | 4.0 | DOX Synchron info data | 0x6000:11 - Info data 1 |