Rockwell-automation 1747-PCINT API Software for 1746 I/O Manual de usuario descargar pdf (Pagina 95)

OC_GetTemperature Library of Routines 6–41

Publication 1747-6.5.3 June 1998

OC_GetTemperature OC_GetTemperature reads the current temperature of the 1746 I/O PCI Interface’s

built-in thermometer.

Syntax:

int OC_GetTemperature(HANDLE handle, BYTE*temp);

Parameters:

Description:

The temperature is updated every 10 seconds by the scanner.

The optimal operating temperature range for the 1746 I/O PCI Interface is 0° to 60°C. When

OC_GetTemperature returns a value of 75_ C or higher, the 1746 I/O PCI Interface is operating beyond its

optimal operating temperature range and you need to correct the situation.

The scanner must be initialized before you can monitor the temperature.

Return Value:

Considerations:

Supported in the DOS API library and the Windows NT API library

Example:

HANDLE Handle;

BYTE temp;

int retcode;

retcode = OC_GetTemperature( Handle, &temp );

Parameter: Description:

handle

Must be a valid handle returned from OC_OpenScanner

temp

Returns the temperature in degrees Celsius

Name: Value: Description:

SUCCESS

temperature was read successfully

ERR_OCACCESS

handle does not have access to scanner

ERR_OCINIT

scanner has not been initialized, see OC_InitScanner

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Rockwell-automation 1747-PCINT API Software for 1746 I/O Manual de usuario Pagina 95