Campbell Scientific SDM-SIO4 4-Channel Serial I/O Interface - Manual (Page 31)

Section 4. Programming the SDM-SIO4
4-5
hexdump [start address] [number of bytes]
This is used by Campbell Scientific for test purposes and outputs a hex dump of
the SDM-SIO4’s internal address space. The start address and number of bytes
to dump must be in base 10, decimal integer.
lasterror
This command returns the last reported error to the command line. This
command can be used, for instance, to get the return code from the ramtest
command when in talk-through mode.
errorres
This resets all error counters.
bytewr [address] [byte]
This is used by Campbell Scientific for test purposes and writes a byte to the
memory of the SDM-SIO4.
The address and bytes to write must be in base 10, decimal integer. The address
range is 0-65535 and the byte is from 0-255.
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