Parameterization¶
The parameterization is done via the corresponding registers explained in the MODBUS TCP registers MODBUS Communication Interface Module.
In addition to that the parameters can be directly transferred via Automation Builder (see documentation of Automation Builder for that).
There are two different parameter sections with different behaviour.
Actual used parameters
After startup this section contains the following data:
- Default parameters (only module id and parameter length set all others zero) if no valid stored parameters are available (no or invalid parameters stored).
- Actual used / stored parameters if valid parameters are stored nonvolatile.
These parameters can be read out and changed by reading or writing of the corresponding registers, but will not be used automatically after writing them, the use of new written parameters has to be triggered by writing the parameter control word with the corresponding bits set (see below).
Stored parameters
This section always contains a copy of the nonvolatile stored parameters, if no parameters are stored nonvolatile this sections will be 0.
Controlword/statusword parameter
This parameter can be used to trigger and save new parameters.
The direction of the first 8 bit is client to server (master to slave). The direction of the second 8 bits is server to client (slave to master).
| Bit | Meaning | Description |
|---|---|---|
| 0 | Use parameters / start parameterization | If this bit is set the CI Device starts the parameterization with the parameters in the actual parameters registers. |
| 1 | Store parameters volatile | If this bit is set the CI device will use the parameters temporarily, which means after a bus error detection and reconnection the parameters will be used again. This bit should always be set. This bit is only evaluated when bit 0 is set. |
| 2 | Store parameters nonvolatile | If this bit is set the CI device will store the parameters nonvolatile, which means after a power cycle the stored parameter data will be used again. This bit is only evaluated when bit 0 is set. |
| 3 | Reserved | |
| 4 | Delete nonvolatile stored parameters | If this bit is set the CI device will delete its nonvolatile stored parameters. This bit is only evaluated when bit 0 is set. |
| 5 | Ignore parameter error for nonvolatile parameter storage | If this bit is set a parameter error during nonvolatile storage of parameters will be ignored, and the parameters will be stored. This bit can only be set in combination with bit 0 and bit 2. |
| 6 | Reserved | |
| 7 | Reserved | |
| 8 | New diagnosis available | The device will set this bit if new diagnosis data are available in the diagnosis data section. |
| 9 | New parameters available | The device will set this bit if new parameters are available in the actual parameter data section and these were not activated by setting bit 0 in the control word. |
| 10…15 | Reserved |