Badger Basket ModMag M2000 Installation And Operation Manual
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Data management Page 20/23MID_M2000_BA_02_PB_16126.4 Analog input functional blockThe analog input (AI) function block has a single fixed channel. This fixed channelassociates with the flow rate [User Units] parameter. The AI function block operates inmodes controlled by a state machine. The modes determine the output (that is, OUT) fromthe function block. The following modes are supported:Figure 6: Analog input function block structureNote: PV_SCALE, PV_FTIME, OUT_SCALE, UNIT and SIMULATE are programmablefunction block parameters within the analog input function block.The input to the function block is normally taken from an index in the transducer block andis determined by the CHANNEL parameter (fixed) of analog input function block.However,if the operator enables the simulate function, the input value is taken from the SIMULATEparameter.In addition, the operator may choose to scale the output into another unit compared towhat is given by the measurement (PV).Normally the OUT value will be given in either %or in the unit of measurement of PV.The scaling is linear and is made between the PVupper/lower range and the OUT upper/lower range.Mode Output from function block Mode coding(hexadecimal)Out of service Last output value (whenresource states shows a HWfailure).0x80Manual Output value set by operator. 0x10Auto Output value is calculated fromthe function block input. (Theinput may be set by theoperator when in simulation).0x08PV_FTIMELast valueFilterPV_SCALEChannelvalueSimulateOUT_SCALE UnitALARMHigh alarmHigh warningLow alarmLow warningLast useablevalueValue set byoperatorSwitched by modeOUT |
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