[out] | Response | :
iReturnValue :
- 0 : means the remote function performed OK
- -1: means an system error occured
syserrno : system-error code (the value of the libc "errno" code)
ulValue : short circuit status: from 0 to 0xffff, one bit for each output
- 0 : no short circuit
- 1 : short circuit
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