colehan
Member
Hey All,
Looking to set up a no-contact thermocouple to a piece of testing equipment that can basically just switch a NC input that shuts off the whole machine when a certain temp is reached, then restarts it once the part is cooled to an acceptable level.
Looking at a IR thermocouple from Melexis (MLX90614 family) for no other reason than it is cheap. My concern is with how this sensor will actually talk to the PLC (Idec FC5A_D16RK1).
If I use the PWM signal from the thermocouple will it be possible to use some simple math functions within my logic to turn this thing off say at 80*C or whatever we decide is needed?
Basically just need this thermocouple to operate as a relay for the input but once again, not sure if that signal will talk to my PLC. Or if anyone else has used a thermocouple in a similar manner which one worked well for you?
Thanks in advance for any advice,
Cole
Link to Thermo
https://www.sparkfun.com/datasheets/Sensors/Temperature/SEN-09570-datasheet-3901090614M005.pdf
Looking to set up a no-contact thermocouple to a piece of testing equipment that can basically just switch a NC input that shuts off the whole machine when a certain temp is reached, then restarts it once the part is cooled to an acceptable level.
Looking at a IR thermocouple from Melexis (MLX90614 family) for no other reason than it is cheap. My concern is with how this sensor will actually talk to the PLC (Idec FC5A_D16RK1).
If I use the PWM signal from the thermocouple will it be possible to use some simple math functions within my logic to turn this thing off say at 80*C or whatever we decide is needed?
Basically just need this thermocouple to operate as a relay for the input but once again, not sure if that signal will talk to my PLC. Or if anyone else has used a thermocouple in a similar manner which one worked well for you?
Thanks in advance for any advice,
Cole
Link to Thermo
https://www.sparkfun.com/datasheets/Sensors/Temperature/SEN-09570-datasheet-3901090614M005.pdf