Led Indications; Power Led (Pwr); Lan Led - VTI Instruments EX1401 User Manual

0x00000002
0x00000004
0x00000008
0x00000010
0x00000020
0x00010000
0x00100000
Any of these bits can be enabled to drive the state of the front-panel LEDs or any of the instrument's
trigger outputs (EXT, DIO0-7, LAN0-7). For more information, see the LED Indications and
Overload and Trigger Outputs sections.
Any of these bits can also be enabled as latching. If this is set, the bit will only become unset in the
status at the beginning of a new acquisition, or when explicitly cleared by the user.
Each block of data read from the instrument will include a single bit indicating whether any overload
status bits were set for any of the included samples. This provides a simple, quick indication of
whether the data is valid for a particular block.
LED I
NDICATIONS
As an LXI standard compliant instrument, the EX1401 instrument provides multiple LED indicators
on the front and rear of the instrument to indicate the power, network connectivity and
synchronization status.

Power LED (PWR)

This is a single colored LED. If the LED is glowing Solid Green, it indicates that power is applied
to instrument, and is in active states.

LAN LED

This is a Bi-color LED (Red/Green), used for indicating the basic network connectivity status. The
LED glows in solid green color, when the device is successfully connected to a network, without
any conflict/error. If there is a problem with the LAN connectivity, this indicator turns to solid red
EX1401 Basic Operation
Transducer Upper Limit
Transducer Lower Limit
User Upper Limit
User Lower Limit
Open Transducer
ADC Overload
ADC Sync
T 3-3: O L C
ABLE VER OAD ONDITIONS AND
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The signal is above the defined range of the
transducer's EU conversion. This is either the limit of
the NIST polynomials, for standard thermocouple
types, or the user-supplied value of
Channel.Tranducer.UpperLimit.
The signal is below the defined range of the
transducer's EU conversion. This is either the limit of
the NIST polynomials, for standard thermocouple
types, or the user-supplied value of
Channel.Tranducer.LowerLimit.
The signal is above the user-defined value of
Channel.Overload.UserUpperLimit, and
Channel.Overload.UserLimitEnabled is True.
The signal is below the user-defined value of
Channel.Overload.UserLowerLimit, and
Channel.Overload.UserLimitEnabled is True.
The OTD trickle current is enabled and has caused
the input voltage to rise above the upper limit of the
ADC's valid input range.
The signal is outside of the ADC's valid input range,
either too high or too low.
The channel's ADC has become unsynchronized
from the others in the instrument, likely due to
electrostatic discharge. While this status bit remains
set, the firmware is resynchronizing it.
I
NDICATIONS
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