Sensoray 518 User Manual

Page 20

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Read Board Temperature

This command returns the temperature at the optional 7409TC termination board. Useful for
monitoring the temperature of thermocouple reference junctions, this function is also a good
debugging aid during 518 installation. The returned temperature value is scaled to 0.10 degrees
C/bit.

If no 7409TC is connected to the 518, the Read Board Temperature command will return a
meaningless value.

COMMAND: (64)
RESPONSE: (BOARD TEMP MSB), (BOARD TEMP LSB)

EXAMPLE:

‘ Read and display the 7409TC temperature in degrees F:

CALL Send518Byte (BasePort%, 64) ‘send opcode to 518
Temp! = Read518Word (BasePort%) / 10! ‘read response & convert to degrees C

DegreesF! = 1.8 * Temp! + 32.0 ‘convert to degrees F
PRINT DegreesF! ’display temperature on CRT