Campbell Hausfeld SDM-SIO4 사용자 설명서

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Section 4.  Programming the SDM-SIO4
4-5
testio [test#]
This is used by Campbell Scientific for test purposes.
Each test command is carried out for 2 seconds. Test# can be in the range 0-255;
only five test numbers are currently valid, as shown below.
testio
returns
test 0 
DTR,RTS,IO=LOW
test1 DTR=HIGH,RTS,IO=LOW
test2
DTR=LOW,RTS=HIGH,IO=LOW
test3
DTR,RTS=HIGH,IO=LOW
test4
DTR,RTS=LOW,IO=HIGH