1.Description
With this module, state values of a communication object are saved in a non-volatile memory (permanently). The value of the last telegram is always saved. During a restart of HS/FS, the value of the retentive memory is sent to the output.
Important
If the value of a CO connected with the module changes to 0, this change is not sent at the bus!
Note
Instead of using the module, the CO can be marked directly as retentive:
(Set "Expert->Master data->Communication object->Option " Retentive memory" to "Yes, save CO retentively".)
(Set "Expert->Master data->Communication object->Option " Retentive memory" to "Yes, save CO retentively".)
Note
The input and the output are usually assigned the same communication object.
2.Inputs
| No. | Name | Initialisation | Description |
|---|---|---|---|
| 1 | E1 | 0 | The communication object for which the value is to be saved is assigned here. If several communication objects are assigned, then only the value of the last telegram is saved. See also comment below! |
3.Outputs
| No. | Name | Initialisation | SBC | Description |
|---|---|---|---|---|
| 1 | A1 (sbc) | 0 | sbc | On restart the saved value is sent here. See also comment below! |
s = send, sbc = send by change
4.Other
| Recalculation during start: | Yes |
|---|---|
| Module is retentive: | Yes |
| Internal designation: | 9026 |
| Category: | Additional modules |