> 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/ziehl-abegg/ziehl_abegg_ecblue_basic_modbus.md). # ZIEHL\_ABEGG\_ECBLUE\_BASIC\_MODBUS ## `ZIEHL_ABEGG_ECBLUE_BASIC_MODBUS` (FB) `FUNCTION_BLOCK` ZIEHL\_ABEGGCBLUE\_BASIC\_MODBUS ### Representation
InOut: | Scope | Name | Type | Initial | Comment | | ----------- | ------------------- | -------------------------------------------------- | ------------------------------------------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Input | `xEn` | `BOOL` | TRUE | Enable / disable communication (TRUE = enable) | | Input | `byUnitId` | `BYTE` | 0 | Device address | | 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 each rising edge) | | Input | `xResError` | `BOOL` | FALSE |

Reinitialization of the outputs eErrorCodeCom,
stErrorCodeDev and stWarningCodeDev in the error-free
state (on every rising edge)

| | Input | `rSetp` | `REAL` | 0.0 |

Setpoint - fan (0.0 - 100.0% or absolute speed
)

| | Input | `wPinCode` | `WORD` | 0 |

PIN code for triggering different functions (2143 =
Reset, 9095 = factory configuration)

| | Input | `xK1` | `BOOL` | FALSE |

Change of state of K1 (prerequisite: wK1Function =
17)

| | Input | `xMinSpeedOff` | `BOOL` | FALSE |

Enable / disable minimum speed (FALSE = no
disabling of minimum speed)

| | Input | `xBypassTemp2` | `BOOL` | FALSE |

Enable / disable bypassing temperature management 2
(FALSE = no bypass)

| | Input | `xBypassTemp1` | `BOOL` | FALSE |

Enable / disable bypassing temperature management 1
(FALSE = no bypass)

| | Input | `xChangeRotation` | `BOOL` | FALSE |

Enable / disable reversal of direction of rotation 1 (FALSE =
no reversal)

| | Input | `xSpeedLimitMode` | `BOOL` | FALSE |

Enable / disable limiting the speed to
rSpeedLimit (FALSE = no limitation)

| | Input | `xFixedSpeed3` | `BOOL` | FALSE | Enable / disable fixed speed 3 (FALSE = disabled) | | Input | `xFixedSpeed2` | `BOOL` | FALSE | Enable / disable fixed speed 2 (FALSE = disabled) | | Input | `xEnFan` | `BOOL` | FALSE | Enable / lockout of the fan (FALSE = lockout) | | Inout | `ModbusClient` | `ModbusClientBase` | | Client of the device | | Output | `rSetpFb` | `REAL` | | Feedback - Current setpoint | | Output | `rRatedSpeed` | `REAL` | | Rated speed of the fan | | Output | `rFirmwareVers` | `REAL` | | Firmware version of the fan | | Output | `rProductCode` | `REAL` | | Product identifier of the fan | | Output | `rParamSetID` | `REAL` | | Parameter set identification of the fan | | Output | `rState_1` | `REAL` | | Current operating state (Input Register 10) | | Output | `rSpeed` | `REAL` | | Current number of revolutions per minute | | Output | `rCurrent` | `REAL` | | Current motor current in X.XX A | | Output | `rDCVolt` | `REAL` | | Current intermediate circuit voltage (DC) in volts | | Output | `rMainsVolt` | `REAL` | | Current mains voltage (peak value) in volts | | Output | `rIGBTTemp` | `REAL` | | Current IGBT temperature in XX.X degrees Celsius | | Output | `rInteriorTemp` | `REAL` | | Current electronics temperature in XX.X degrees Celsius | | Output | `rMCUTemp` | `REAL` | | Current MCU temperature in XX.X degrees Celsius | | Output | `rAI1Value` | `REAL` | |

Current value at analog input 1 in percent (0.0 - 100.0 %
)

| | Output | `rModLevel` | `REAL` | | Current modulation level (0.0 - 100.0%) | | Output | `rPower` | `REAL` | | Current power consumption in watts | | Output | `rOperatingHours` | `REAL` | | Current number of operating hours | | Output | `rVolumeFlow` | `REAL` | |

Current calculated airflow rate (prerequisite: Control
Mode = airflow rate)

| | Output | `rPasswordLevel` | `REAL` | | Current password level (0 - 3) | | Output | `rRemainServLife` | `REAL` | | Current calculated remaining service life in hours | | Output | `xOperationFan` | `BOOL` | | Fan operation message (FALSE = Off) | | 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_1` | `STRING` | |

String 1 with the numbers of active device faults (Input-
Register 12)

| | Output | `stErrorCodeDev_2` | `STRING` | |

String 2 with the numbers of active device faults (Input-
Register 13, Bits 15 - 8))

| | Output | `rErrorCodeCause` | `REAL` | | Code with the cause of the highest-priority fault | | Output | `stWarningCodeDev` | `STRING` | | String with the numbers of the active device warnings | | Output | `rWarningCodeCause` | `REAL` | | Code with the cause of the highest-priority warning | | Output | `xBusy` | `BOOL` | | Communication indicator (TRUE = communication) | | Input Const | `rAlarmLifespan` | `REAL` | 0.0 |

Limit value - fault - remaining service life in h (range = 0.0 -
65535.0, 0.0 h = off)

| | Input Const | `rWarningLifespan` | `REAL` | 0.0 |

Limit value - warning - remaining service life in h (range = 0.0 -
65535.0, 0.0 h = off)

| | Input Const | `rDeviationFanBad` | `REAL` | 0.0 |

Limit value - control deviation target/actual speed in 1/min (
range = 0.0 - 255.0, 0.0 1/min = off)

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

Notification delay - control deviation target/actual speed in s (
range = 0.0 - 255.0, 0.0s = off)

| | Input Const | `rFade3Max` | `REAL` | 600.0 |

Maximum value - speed fade-out range 3 in 1/min (range
= 0.0 - 9999.0)

| | Input Const | `rFade3Min` | `REAL` | 500.0 |

Minimum value - speed fade-out range 3 in 1/min (range
= 0.0 - 9999.0)

| | Input Const | `rFade2Max` | `REAL` | 300.0 |

Maximum value - speed fade-out range 2 in 1/min (range
= 0.0 - 9999.0)

| | Input Const | `rFade2Min` | `REAL` | 200.0 |

Minimum value - speed fade-out range 2 in 1/min (range
= 0.0 - 9999.0)

| | Input Const | `rFade1Max` | `REAL` | 100.0 |

Maximum value - speed fade-out range 1 in 1/min (range
= 0.0 - 9999.0)

| | Input Const | `rFade1Min` | `REAL` | 0.0 |

Minimum value - speed fade-out range 1 in 1/min (range
= 0.0 - 9999.0)

| | Input Const | `rFadeFunction` | `REAL` | 0.0 |

Enable / disable speed fade-out ranges (0.0 =
no fade-out)

| | Input Const | `rSpeedLimit` | `REAL` | 75.0 |

Limitation of the speed in percent (if enabled,
range: 0.0 - 100.0 %)

| | Input Const | `rWatchdogFunction` | `REAL` | 0.0 | Watchdog - function (0.0 = no watchdog function) | | Input Const | `tWatchdogTime` | `TIME` | TIME#0ms | Watchdog - time duration (0s = no watchdog function) | | Input Const | `rControllerSetup` | `REAL` | 513.0 |

Definition of the controller setup flags (functions see
the manual)

| | Input Const | `rK1Function` | `REAL` | 2.0 |

Function of relay K1 (0.0 = off, 1.0 = fan operation,
2.0 = fan fault)

| | Input Const | `rD1Function` | `REAL` | 1.0 |

Function of digital input D1 (0.0 = off, 1.0 = fan
enable)

| | Input Const | `rE1Function` | `REAL` | 0.0 |

Function of analog input E1 (0.0 = 0 - 10V / PWM, 1.0 =
fan enable)

| | Input Const | `rE1Max` | `REAL` | 100.0 |

End value for analog input E1 in percent (range:
rE1Min = 100.0)

| | Input Const | `rE1Min` | `REAL` | 5.0 |

Start value for analog input E1 in percent (range: 0.0
= rE1Max)

| | Input Const | `rInvE1D1K1` | `REAL` | 0.0 |

Inversion of inputs/outputs E1, D1 and K1 (0.0 = no
inversion)

| | Input Const | `rFixedSpeed3` | `REAL` | 3000.0 | Fixed speed 3 in 1/min (range rSpeedMin - rSpeedMax) | | Input Const | `rSpeedMax` | `REAL` | 3000.0 |

Absolute maximum speed in 1/min (range rSpeedMin -
rRatedSpeed)

| | Input Const | `rSpeedMin` | `REAL` | 0.0 |

Absolute minimum speed in 1/min (range 0.0 -
rRatedSpeed)

| | Input Const | `rFixedSpeed2` | `REAL` | 2000.0 | Fixed speed 2 in 1/min (range rSpeedMin - rSpeedMax) | | Input Const | `rFixedSpeed1` | `REAL` | 1000.0 | Fixed speed 1 in 1/min (range rSpeedMin - rSpeedMax) | | Input Const | `xEnEnFan` | `BOOL` | TRUE |

Option - enable / disable the fan (FALSE =
option disabled)

| | Input Const | `xEnFixedSpeed2` | `BOOL` | FALSE |

Option - enable / disable fixed speed 2 (FALSE =
option disabled)

| | Input Const | `xEnFixedSpeed3` | `BOOL` | FALSE |

Option - enable / disable fixed speed 3 (FALSE =
option disabled)

| | Input Const | `xEnLimitMode` | `BOOL` | FALSE |

Option - enable / disable limiting the speed to
rSpeedLimit (FALSE = option disabled)

| | Input Const | `xEnChangeRotation` | `BOOL` | FALSE |

Option - enable / disable reversal of direction of rotation (FALSE
= option disabled)

| | Input Const | `xEnBypassTemp1` | `BOOL` | FALSE | Option - enable / disable bypassing temperature management 1 (FALSE = option disabled) | | Input Const | `xEnBypassTemp2` | `BOOL` | FALSE | Option - enable / disable bypassing temperature management 2 (FALSE = option disabled) | | Input Const | `eControlMode` | ZIEHL\_ABEGG\_ECBLUE\_BASIC\_MODBUS\_CONTROL\_MODE | ZIEHL\_ABEGG\_ECBLUE\_BASIC\_MODBUS\_CONTROL\_MODE.SPEED\_PERCENT\_RSETP | Specification of the operating mode (3 = rSetp - 0.0 - 100.0 %) | | Input Const | `tTimeUpdateConfig` | `TIME` | TIME#0ms |

Update interval for the processes influenced by the input
xUpdateConfig influenced

| | 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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