# BELIMO\_EPXXXX\_FW\_3\_0\_8\_MOD ## `BELIMO_EPXXXX_FW_3_0_8_MOD` (FB) `FUNCTION_BLOCK` BELIMO\_EPXXXX\_FW\_3\_0\_8\_MOD ### **Display**
### Guidelines - Software creation The following function codes (FC) are supported: 3, 4 (additionally: 2, 4, 16) For write operations on 32-bit data points (2 consecutive Modbus registers), FC16 must be used. No further registers may be written in this telegram. Format of 32-bit data points: Register+0 (LSW): H-byte L-byte Register+1 (MSW): H-byte L-byte FC 02 may only be used for register 105 (Malfunction and service information, start address = 1664). * For addressing, use the address information, not the register addresses. * For unused registers, the value 65535 (dec.) is read / written * Modbus addresses 1 - 247 can be set directly on the valve. {% hint style="info" %} All writable register addresses > 100 are persistent and must not be written cyclically {% endhint %} 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 | `xUpdateConfig` | `BOOL` | FALSE |

Update of the configuration (on every rising
edge) (write and read access)

| | Input | `xUpdateInfo` | `BOOL` | FALSE |

Update of the information (on every rising
edge)

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

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

| | Input | `rRelSetp` | `REAL` | 0.0 |

Relative setpoint - position/volume flow in % (0.0 -
100.0 %)

| | Input | `eOverrideCon` | BELIMO\_EPXXXX\_FW\_3\_0\_8\_OVERRIDE\_CONTROL | BELIMO\_EPXXXX\_FW\_3\_0\_8\_OVERRIDE\_CONTROL.None |

Position control: 0.0 - 100.0% refer to the relative position
Flow rate control: 0.0 - 100.0% refer to the range 0 - Vmax (address 106)
Forced override of the actuator signal - position/volume flow (0 = None)

| | Input | `eCommand` | BELIMO\_EPXXXX\_FW\_3\_0\_8\_COMMAND | BELIMO\_EPXXXX\_FW\_3\_0\_8\_COMMAND.None | Command for service functions (0 = None) | | Inout | `ModbusClient` | `ModbusClientBase` | | Client of the device | | Output | `eSetpSourceFb` | BELIMO\_EPXXXX\_FW\_3\_0\_8\_SETPOINT\_SOURCE | |

Feedback - source for the setpoint -
Position/volume flow (1 = Modbus)

| | Output | `eControlModeFb` | BELIMO\_EPXXXX\_FW\_3\_0\_8\_CONTROL\_MODE | | Feedback - control mode (1 = volume flow) | | Output | `rRelSetpFb` | `REAL` | |

Feedback - relative setpoint - position/volume flow in
% (0.0 - 100.0 %)

| | Output | `rRelSetpAnalog` | `REAL` | |

Relative setpoint - position/volume flow in V (0.0 - 10.0
V) from input 0 - 10V (address 118 = 0 = analog)

| | 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 volume flow in % (0.0 - 100.0 %) (relative to
Vnom - addresses 112 and 113)

| | Output | `rRelVolFlowLimitMaxFb` | `REAL` | |

Feedback - limit value - maximum percentage
volume flow (reference: Vnom) (range: 0.3 - 1.0 Vnom)
(Control\_Mode = Flow Control or Position Control)

| | Output | `rNomAbsVolFlowUnit` | `REAL` | |

Nominal volume flow in the selected unit (addresses
112 and 113) (unit defined in address 117)

| | Output | `rAbsVolFlowUnit` | `REAL` | |

Absolute volume flow in the selected unit (unit defined
in address 117)

| | Output | `eVolFlowUnitFb` | BELIMO\_EPXXXX\_FW\_3\_0\_8\_VOLUME\_FLOW\_UNIT | |

Feedback - unit for the absolute volume flow (
unit defined in address 117)

| | Output | `eSensor1TypeFb` | BELIMO\_EPXXXX\_FW\_3\_0\_8\_SENSOR\_1\_TYPE | | Feedback - sensor type (address 107: sensor type) | | Output | `rSensor1ValueUnit` | `REAL` | |

Current value of sensor 1 in the selected unit (
address 107: sensor type)

| | Output | `eOverrideConFb` | BELIMO\_EPXXXX\_FW\_3\_0\_8\_OVERRIDE\_CONTROL | |

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

| | Output | `eCommandFb` | BELIMO\_EPXXXX\_FW\_3\_0\_8\_COMMAND | |

Current state - command for service functions (0 = None
)

| | Output | `eDeviceType` | BELIMO\_EPXXXX\_FW\_3\_0\_8\_DEVICE\_TYPE | |

Current state - type of the device (0 = Device not
connected)

| | Output | `eBusTermin` | BELIMO\_EPXXXX\_FW\_3\_0\_8\_BUS\_TERMINATION | | Status of the Modbus termination resistor (Active = Enabled) | | Output | `sSerialNum` | `STRING` | | Serial number of the device | | Output | `wFirmwareVer` | `WORD` | | Firmware version of the device | | Output | `eAO` | eManNum | eManNum.Auto |

Display - manual override on the device (actuator disconnected)
(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 faults | | Output | `xBusy` | `BOOL` | | Communication display (TRUE = communication) | | Input Const | `tBusFailTimeout` | `TIME` | TIME#2m0s0ms |

Duration for evaluating a communication error (0 =
disabled, 1 - 3600s)

| | Input Const | `eBusFailPosition` | BELIMO\_EPXXXX\_FW\_3\_0\_8\_BUS\_FAIL\_POSITION | BELIMO\_EPXXXX\_FW\_3\_0\_8\_BUS\_FAIL\_POSITION.None\_Last\_setpoint |

Definition of the action in the event of a timeout of the
communication monitoring

| | Input Const | `eSensor_1_Type` | BELIMO\_EPXXXX\_FW\_3\_0\_8\_SENSOR\_1\_TYPE | BELIMO\_EPXXXX\_FW\_3\_0\_8\_SENSOR\_1\_TYPE.None | Definition of the type of sensor 1 (0 = None) | | Input Const | `rRelVolFlowLimitMax` | `REAL` | 100.0 |

Limit value - maximum percentage volume flow (reference:
Vnom) (range: 0.3 - 1.0 Vnom) (Control\_Mode = Flow
Control or Position Control)

| | Input Const | `eSetpSource` | BELIMO\_EPXXXX\_FW\_3\_0\_8\_SETPOINT\_SOURCE | BELIMO\_EPXXXX\_FW\_3\_0\_8\_SETPOINT\_SOURCE.Bus |

Source for the setpoint - position/volume flow (1 = Modbus
)

| | Input Const | `eVolFlowUnit` | BELIMO\_EPXXXX\_FW\_3\_0\_8\_VOLUME\_FLOW\_UNIT | BELIMO\_EPXXXX\_FW\_3\_0\_8\_VOLUME\_FLOW\_UNIT.m3\_per\_hour |

Unit for the absolute volume flow (unit defined in
address 117)

| | Input Const | `eControlMode` | BELIMO\_EPXXXX\_FW\_3\_0\_8\_CONTROL\_MODE | BELIMO\_EPXXXX\_FW\_3\_0\_8\_CONTROL\_MODE.Flow\_Control | Control mode (1 = volume flow) | | Input Const | `tTimeUpdateInfo` | `TIME` | TIME#0ms |

Update interval for the processes that are influenced by the input
xUpdateInfo affected

| | Input Const | `tTimeUpdateConfig` | `TIME` | TIME#0ms |

Update interval for the processes that are influenced by the input
xUpdateConfig affected

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

Update interval for the processes that are influenced by the input
xUpdateSetp affected

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

Update interval for the processes that are influenced by the input
xUpdateActual affected

|