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SCPI Command Basics 5-22
This bit is set when a trigger event occurs on a 1260-114
digital IO card.
Waiting For Arm
This bit is set when a Scan List has been defined, but the
1256 is not armed. Use the INIT:IMMEDIATE or
INIT:CONTINUOUS command to arm the 1256
Waiting for Trigger
This bit is set when a Scan List has been defined,
and the 1256 has been armed, but is waiting for a
trigger. The TRIGGER:SOURCE command may be
used to select a trigger source. If the trigger source
is "BUS", then the *TRG command will satisfy a
trigger
Settling
This bit is set when the relays are settling due to a
CLOSE, OPEN, or SCAN operation. This bit is
cleared after the settling time has elapsed.
All of the other bits of this register are not used by the 1256. These
bits will return a value of 0 when read.
The Operation Status Enable Register enables individual bits to
pass through to the Operation Status Event Register. The bits of
the Operation Status Enable Register are ANDed with the bits of
the Operation Status Condition Register. If both bits are set, then
the corresponding bit in the Operation Status Event Register is set.
For example, if bits 1, 5, and 6 of the Operation Status Condition
Register are set, and bits 5 and 6 of the Operation Status Enable
Register are set, then bits 5 and 6 of the Operation Status Event
Register will be set.
The Operation Status Event Register latches the status
information. Once a bit is set in the Operation Status Event
Register, it remains set until the bit is cleared by reading the
register with the STATUS:OPERATION:EVENT? query, or by
sending the *CLS command.
When any of the bits of the Operation Status Event Register are
set, bit 7 of the Status Byte Register will be set.
The Questionable Status Register is not used by the 1256. When
the Questionable Status Condition Register or Questionable Status
Event Register are read, they will return a value of 0. The
Bit 6, Bit weight = 64 decimal = 40
hexadecimal
Bit 5, Bit weight = 32 decimal = 20
hexadecimal
Bit 1, Bit weight = 2 decimal = 2
hexadecimal
Racal Instruments © 2002
1256E User Manual
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