|
| *tOffDelay* | TIME | | | Remaining time of the device's run-on |
| *dtLastFb* | DATE\_AND\_TIME | | | Date / time of the device's last operation |
| *dtAbsLastOn* | DATE\_AND\_TIME | | | Date / time of the last anti-blocking operation |
| *udiOperatingHours* | UDINT | | | Operating hours of the device |
| *udiCountFb* | UDINT | | | Number of device switches |
| *xAlarm* | BOOL | | |
\* FALSE: Output xHB when forced override OFF \* TRUE: Output xHB when forced override ON
|
| **tAbsTime** | UDINT | 0 … 600s | 120s | Duration of the anti-blocking operation |
| **tAbsTime** | TOD | 00:00:00 - 23:59:59 | 08:00:00 | Time of the anti-blocking operation |
| **eAbsDay** | eDoW | eDoW\.Monday … eDoW\.Sunday | eDoW\.Monday | Weekday of the anti-blocking operation |
| **eOffDelayTimeBase** | eTime | eTime.Second, eTime.Minute, eTime.Hour | eTime.Second | Scaling of the off-delay (seconds / minutes / hours) |
| **udiOffDelay** | UDINT | 0 … 60min | 120s | Device run-on time duration |
| **eManModeB** | eMANBIN | eMANBIN.Auto, eMANBIN.ManOff, eMANBIN.ManOn | eMANBIN.Auto | Operating mode of the manual override for the digital output *xHB* |
### Function description
#### Automatic output *xAB*
The digital automatic output *xAB* is influenced by the input *xEn*, the output *xAlarm*, the off-delay module and the anti-blocking module.
| *xEn* | *xAlarm* | *xAlarmControl* | Off-delay module | Anti-blocking module | *xAB* | Notes |
| ----- | -------- | --------------- | ---------------- | -------------------- | ----- | ------------------------------------ |
| X | TRUE | TRUE | X | X | FALSE | Shutdown allowed by collective fault |
| FALSE | X | FALSE | FALSE | FALSE | FALSE | Automatic operation Off |
| TRUE | x | FALSE | FALSE | FALSE | TRUE | Automatic operation On |
| X | X | FALSE | TRUE | X | TRUE | Off-delay operation |
| X | x | FALSE | X | TRUE | TRUE | Anti-blocking operation |
Legend: X = any\
\
With the parameter *xAlarmControl* the behavior of the output *xAB* in case of fault can be influenced.\
When *xAlarmControl* = TRUE then in case of fault (*xAlarm* = TRUE) the automatic output *xAB* is switched off; if the manual override module is in automatic, then the output *xHB* is also switched off.\
When *xAlarmControl* = FALSE there is no reaction.
#### Manual output *xHB*
The digital manual output *xHB* corresponds to the digital automatic output *xAB*, additionally extended by a manual override module and by a forced override.
| *xAB* | eMANBIN | *xForce* | **xForceOption** | *xHB* | Notes |
| ----- | -------------- | -------- | ---------------- | ----- | ---------------------------------------------- |
| FALSE | eMANBIN.Auto | FALSE | X | FALSE | Manual override module in automatic |
| TRUE | eMANBIN.Auto | FALSE | X | TRUE | Manual override module in automatic |
| X | eMANBIN.ManOn | FALSE | X | TRUE | Manual override module in manual operation On |
| X | eMANBIN.ManOff | FALSE | X | FALSE | Manual override module in manual operation Off |
| X | X | TRUE | FALSE | FALSE | Forced override Off |
| X | X | TRUE | TRUE | TRUE | Forced override On |
Legend: X = any
#### Request - energy generation *xEnergyRequest*
The digital output *xEnergyRequest* is influenced by the input *xFb*, the off-delay module and the anti-blocking module.
| *xFB* | Off-delay module | Anti-blocking module | *xEnergyRequest* | Notes |
| ----- | ---------------- | -------------------- | ---------------- | ------------------------------- |
| FALSE | X | X | FALSE | Circulation pump is not running |
| TRUE | FALSE | FALSE | TRUE | Circulation pump is running |
| TRUE | TRUE | X | FALSE | Off-delay module is running |
| TRUE | X | TRUE | FALSE | Anti-blocking module is running |
Legend: X = any
#### Off-delay module
The off-delay module is implemented by a shut-off delay with adjustable duration. The input of the off-delay module is active if the enable 'xEn' is active and at the same time the collective fault *xAlarm* is not active.
#### Anti-blocking module
The anti-blocking module is implemented by the binary anti-blocking module with adjustable duration.\
The duration *tAbsTime*, the time **tAbsTime** and the weekday **eAbsDay** are configurable.\
The timestamp (date / time) of the last anti-blocking operation *dtAbsLastOn* is available.
#### Output *xAlarm*
| *xAlarmIn* | *xAlarmFb* | *xAlarm* | Notes |
| ---------- | ---------- | -------- | ------------------------------------ |
| FALSE | FALSE | FALSE | Collective fault is inactive |
| TRUE | FALSE | TRUE | External hardware fault is active |
| FALSE | TRUE | TRUE | Operating-monitoring fault is active |
| TRUE | TRUE | TRUE | Both faults are active |
Legend: X = any
#### Collective automatic-mode message *xAuto*
The collective automatic-mode message *xAuto* is activated (= TRUE) if the input *eAOO* has the value HVACTYPES.eManBin.Auto and the setpoint / parameter **eManModeB** has the value eMANBIN.Auto.\
In all other cases the collective automatic-mode message *xAuto* is not activated (= FALSE).
#### Forced override *xForce*
The forced override acts directly on the output *xHB*. The parameter **xForceOption** determines which state the output *xHB* assumes when TRUE at the input *xForce* .
#### Operating hours counter
The operating hours counter is active if the circulation pump is running (*xFb* = TRUE) and at the same time the collective fault *xAlarm* is not active (*xAlarm* = FALSE).\
The number of operating hours **udiOperatingHours**, and the number of starts **udiCountFb** are output on the corresponding outputs.\
The timestamp (date / time) of the operation of the circulation pump *dtLastFb* is available.
> **Write access to the counter values**
>
> Via the path 'InstanceName.\_OperatingHours.udiOperatingHours' or 'InstanceName.\_OperatingHours.udiCountFb' write access to both counters is possible.
#### Operating monitoring
The operating monitoring supervises the correct function of the circulation pump.\
The monitoring can generally be enabled (**xFbControl** = TRUE) or disabled (**xFbControl** = FALSE).\
The automatic operation of the circulation pump must also be active (*eAOO* = HVACTYPES.eManBin.Auto).\
\
The input *xFb* and the output *xHB* are permanently compared with each other.\
If the states are continuously unequal during an adjustable time duration **udiFbControlTime** (i.e. pump enabled but no running feedback), the operating-monitoring fault *xAlarmFb* is activated.\
\
The operating-monitoring fault *xAlarmFb* is reset if the enable of the monitoring **xFbControl** is locked, or the reset input *xQuit* is active, or the automatic operation of the circulation pump (*eAOO* = HVACTYPES.eManBin.Auto) is activated.
### Visualization
#### Representation
#### Interfaces Visu-Element
| Name | Data type | Type | Initial value | Function |
| ------------- | --------- | ------------ | ------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **FB\_Pump** | Pump | VAR\_IN\_OUT | | Enter FB Pump here e.g. PRG.Pump |
| **rRotation** | INT | VAR\_INPUT | | Here the rotation of the pump graphic can be entered as an angle in degrees. e.g. 90 corresponds to a rotation of 90 degrees to the right. -90 degrees corresponds to a rotation of 90 degrees to the left. |
{% hint style="info" %}
Note: VAR\_IN\_OUT interfaces must be assigned, VAR\_INPUT are optional.
{% endhint %}
### CODESYS
InOut:
| Scope | Name | Type | Initial |
| ----------- | ------------------- | ------- | ------------ |
| Input | `xEn` | `BOOL` | |
| Input | `xForce` | `BOOL` | FALSE |
| Input | `xFb` | `BOOL` | |
| Input | `xAlarmIn` | `BOOL` | |
| Input | `eAOO` | eManBin | eManBin.Auto |
| Input | `xQuit` | `BOOL` | FALSE |
| Output | `xHB` | `BOOL` | |
| Output | `xAB` | `BOOL` | |
| Output | `xAlarmFb` | `BOOL` | |
| Output | `dtLastFb` | `DT` | |
| Output | `udiOperatingHours` | `UDINT` | |
| Output | `udiCountFb` | `UDINT` | |
| Output | `xAlarm` | `BOOL` | |
| Output | `xAuto` | `BOOL` | |
| Input Const | `udiFbControlTime` | `UDINT` | 60 |
| Input Const | `xFbControl` | `BOOL` | TRUE |
| Input Const | `xForceOption` | `BOOL` | FALSE |
| Input Const | `eManModeB` | eMANBIN | eMANBIN.Auto |
Methods:
> mQuit
> mResetOperatingHours
Structure:
* mQuit (Method)
* mResetOperatingHours (Method)
