Valve Control

Overview

This group defines all required functions for valve control, configuration and reading of valve states.

Collaboration diagram for Valve Control:

Functions
uint8_t	NemIsValveInstalled (TNemesys *Nemesys)
	Checks the device configuration if a valve is installed. More...
uint32_t	NemIsValveStateDispense (TNemesys *Nemesys)
	Check if valve is switched to dispense state (output). More...
long	NemSwitchValve (TNemesys *Nemesys, uint8_t SwitchToDispense)
	Switch the integrated three way valve (if one is installed). More...

Function Documentation

uint8_t NemIsValveInstalled

(

TNemesys *

Nemesys

)

Checks the device configuration if a valve is installed.

Parameters

[in]

Nemesys

Device to query

Return values

1	valve is installed 0 no valve is installed

{
    uint32_t ValveCfgBit = CFGBIT_VALVE_INSTALLED;
    if (Nemesys->DevCfg & CFGBIT_NEW_CONFIG)
    {
        ValveCfgBit = CFGBIT_VALVE_INSTALLED_NEW;
    }

    if (Nemesys->DevCfg & ValveCfgBit)
    {
        return 1;
    }
    else
    {
        return 0;
    }
}

uint32_t NemIsValveStateDispense

(

TNemesys *

Nemesys

)

Check if valve is switched to dispense state (output).

Parameters

[in]

Nemesys

Device to query

Return values

1	Valve state is dispense (output)
0	Valve state is aspirate (input)
<0	Error code (function call failed with error code)

{
    return Nemesys->ValveStateDisp;
}

long NemSwitchValve	(	TNemesys *	Nemesys,
		uint8_t	SwitchToDispense
	)

Switch the integrated three way valve (if one is installed).

Parameters

[in]	Nemesys	Device to switch valve
[in]	SwitchToDispense	1 - switch valve to output for dispensing 0 - switch valve to input for aspiration

Returns

Error code - ERR_NOERR indicates success

{
    uint32_t  dwDigOutState;
    long     Result;

    //
    // Now switch valve
    //
    if (SwitchToDispense)
    {
        dwDigOutState = DIG_OUT_VALVE_SWITCH | DIG_OUT_VALVE_8V;
    }
    else
    {
        dwDigOutState = 0;
    }

    Nemesys->ValveStateDisp = SwitchToDispense;
    Result = CsiDevWriteObject(&Nemesys->Device, NEM_OD_H2078_DIGITAL_OUT_FUNC,
        SUB_01_DIG_OUT_STATE, dwDigOutState);
    return Result;
}

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