EEC SE 7430, User Manual, Page: 100 / 106

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*OPC?
Returns an ASCII "1" after the command is executed.
*WAI
After the command is executed, it prevents the instrument from executing any further query or
commands until the no-operation-pending flag is TRUE.
*PSC {1|0}
Sets the power-on status clear bit. When set to 1 the Standard Event Enable register and Status
Byte Enable registers will be cleared when power is turned ON. 0 setting indicates the Enable
registers will be loaded with Enable register masks from non-volatile memory at power ON.
*PSC?
Queries the power-on status clear setting. Returns 0 or 1.
*ESR?
Queries the Standard Event register. Returns the decimal value of the binary-weighted sum of bits.
*ESE <
value >
Standard Event Enable register controls which bits will be logically OR’d together to generate the
Event Summary bit 5 (ESB) within the Status Byte.
*ESE?
Queries the Standard Event enable register. Returns the decimal value of the binary-weighted sum
of bits.
*STB?
Read the Status Byte. Returns the decimal value of the binary-weighted sum of bits.
*SRE <
value >
Service Request Enable register controls which bits from the Status Byte should be used to
generate a service request when the bit value = 1.
*SRE?
Queries the Service Request enable register. Returns the decimal value of binary-weighted sum of
bits.
8.4.8
Status Reporting
The status reporting system is configured using two types of registers. An Event register and a
Summary register. The Summary register is known as the Status Byte register and records high-
level summary information acquired by the Event registers.
An Event register report defines conditions or messages at each bit. The bits are latched and
remain at an active state until the register is either Read or Cleared. Reading the Event register