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Publication No. 980855 Rev. A 1256 User Manual
EADS North America Test and Services SCPI Command Basics 5-21
Digital Trigger Event Bit 7, Bit weight = 128 decimal = 80
hexadecimal
This bit is set when a trigger event
occurs on a 1260-114 digital I/O
card.
Waiting For Arm
Bit 6, Bit weight = 64 decimal = 40
hexadecimal
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
Bit 5, Bit weight = 32 decimal = 20
hexadecimal
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
Bit 1, Bit weight = 2 decimal = 2
hexadecimal
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.
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