> For the complete documentation index, see [llms.txt](https://support.powerio.com/hub/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.powerio.com/hub/codesys-hvac/en/hvac-modbus-library/functionblocks/belimo/belimo_epo15r_r6_mod.md). # BELIMO\_EPO15R\_R6\_MOD ## `BELIMO_EPO15R_R6_MOD` (FB) `FUNCTION_BLOCK` BELIMO\_EPO15R\_R6\_MOD ### **Representation**
InOut: | Scope | Name | Type | Initial | Comment | | ----------- | ------------------- | -------------------------------- | ------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------- | | Input | `xEn` | `BOOL` | TRUE | Enable / disable communication (TRUE = enable) | | Input | `byUnitId` | `BYTE` | 1 | Device address (1 .. 247) | | Input | `xUpdateActual` | `BOOL` | FALSE |

Update of actual values (on every rising edge
)

| | Input | `xUpdateSetp` | `BOOL` | FALSE |

Update of setpoints (on every rising edge
)

| | Input | `xResError` | `BOOL` | FALSE |

Reinitialization of the outputs eErrorCodeCom or
xErrorCodeDev to the fault-free state (on every rising edge)

| | Input | `rSetp` | `REAL` | 0.0 | Setpoint - Position/Flow rate in % (0.0 - 100.0 %) | | Inout | `ModbusClient` | `ModbusClientBase` | | Client of the device | | Output | `rSetpFb` | `REAL` | |

Feedback of the setpoint - Position/Flow rate in % (0.0
- 100.0 %)

| | Output | `rRelPos` | `REAL` | | Relative position in XXX.X % | | Output | `rAbsPos` | `REAL` | | Absolute position in XXX degrees (rotation) or mm (linear movement) | | Output | `rRelVolFlow` | `REAL` | |

Relative flow rate in % (0.0 - 100.0 %) (relative to
VMax1 or VMax2, depending on the active sequence)

| | Output | `rAbsVolFlow` | `REAL` | | Absolute flow rate in the selected unit | | Output | `rSetpAbsVolFlow` | `REAL` | |

Setpoint for the absolute flow rate in the selected
unit

| | Output | `rNomAbsVolFlow` | `REAL` | | Nominal flow rate in the selected unit | | Output | `eUnitSelecFlowFb` | BELIMO\_UnitSelectionFlow | | Display of the selected unit | | Output | `eActiveSequence` | BELIMO\_Active\_Sequence | |

Current state of the sequence (0 = sequence 1, 1 = sequence
2, 2 = dead band)

| | Output | `rSetpAnalog` | `REAL` | |

Setpoint - Position/Flow rate in % in XXX.X % (0.0 -
100.0 %) from input 0 - 10V

| | Output | `eOverrideConFb` | BELIMO\_OverrideControl\_TYPE\_2 | |

Current state - forced override of the control signal -
position/flow rate (0 = None)

| | Output | `sSerialNum` | `STRING` | | Serial number of the device | | Output | `eAO` | eManNum | eManNum.Auto |

Display - manual override on the device (actuator decoupled)
(0 = Automatic)

| | Output | `xAlarm` | `BOOL` | FALSE | Collective fault (TRUE = fault) | | Output | `xAlarmCom` | `BOOL` | FALSE | Collective fault - communication (TRUE = fault) | | Output | `eErrorCodeCom` | ModbusErrorCode | | Error code - communication (0 = no error) | | Output | `stErrorCodeDev` | `STRING` | | String with the numbers of the active device errors | | Output | `xBusy` | `BOOL` | | Communication indicator (TRUE = communication) | | Input Const | `eSetpSource` | BELIMO\_SetpointSource | BELIMO\_SetpointSource.Bus |

Source for the setpoint - position/airflow rate (1 = Modbus
)

| | Input Const | `eUnitSelecFlow` | BELIMO\_UnitSelectionFlow | BELIMO\_UnitSelectionFlow\.l\_h | Unit for the absolute flow rates (4 = l/h) | | Input Const | `rVMaxSeq1` | `REAL` | 100.0 |

Maximum value - Position/Flow rate in % (5.0 - 100.0 % of
V-nominal) for sequence 1

| | Input Const | `rVMaxSeq2` | `REAL` | 100.0 |

Maximum value - Position/Flow rate in % (5.0 - 100.0 % of
V-nominal) for sequence 2

| | Input Const | `eControlMode` | BELIMO\_ControlMode | BELIMO\_ControlMode.FlowControl | Operating mode of the control (0 = Position, 1 = Flow rate) | | Input Const | `eOverrideCon` | BELIMO\_OverrideControl\_TYPE\_2 | BELIMO\_OverrideControl\_TYPE\_2.None |

Forced override of the control signal - position/airflow rate
(0 = None)

| | Input Const | `tTimeUpdateSetp` | `TIME` | TIME#45s0ms |

Update interval for the processes influenced by the input
xUpdateSetp influenced

| | Input Const | `tTimeUpdateActual` | `TIME` | TIME#3s0ms |

Update interval for the processes influenced by the input
xUpdateActual influenced

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