GW Instek SFG-830 User Manual - Manual (Page 43)

p. 40 SFG-830
＊OPC？ Operation Complete Query
z Place an ASCII character 1 into the instrument‘s output queue when
all pending instrument operations are finished.
＊CLS Clear Status Command
z This command clears status data structures. On the other hand, it
sets the bits of the〝Standard Event Register〞and the〝Status Byte
Register〞to zero.
z The Output Queue and the MAV bit will not be cleared.
＊ESE Standard Event Status Enable Command
z ＊ESE, followed by a decimal value, sets the bits of the〝Standard
Event Status Enable Register〞 which correspond to that decimal value
to 1. This enables the assigned bits of the〝Standard Event Status
Register〞.
＊ESE？ Standard Event Status Enable Query
z This query asks for the contents of the 〝Standard Event Status Event
Register〞.The response is a decimal value, e.g.,〝255〞means all
events of the〝Standard Event Status Register〞are enabled, in other
word, all bits are 1.
＊ESR？ Standard Event Status Register Query
z Ask for the contents of the〝Standard Event Status Register〞. The
response is a decimal value. The query clears the register contents.