Spectrum Controls 1746sc-INI4vi - Manual (Page 41)

Chapter 4: Using Your Input Module 37
The first 12 status bits reflect the settings in the channel configuration
word. The remaining status bits flag the various errors that the module
can detect.
Over-Range Error (status bit 12)
This bit is set to one whenever your module detects an over-range
condition for a configured channel. An over-range condition exists when
the input value is very near or above the upper limit for that channel’s
data format (see Table 14).
Under-Range Error (status bit 13)
This bit is set to one whenever your module detects an under-range
condition for a configured channel. An under-range condition exists
when the input value is very near or below the lower limit for that
channel’s data format (see Table 14).
Non-Fatal Channel Error (status bit 14)
This bit is set to one whenever your module detects a recoverable
channel error, such as an invalid configuration word for that channel.
This bit is reset to zero when the error is resolved.
Fatal Channel Error (status bit 15)
This bit is set to one whenever your module detects a “non-recoverable”
channel error, such as a software power-up failure due to corrupt
hardware or malfunctioning software. You may be able to recover from
this type of error by resetting the SLC 500 processor or cycling power to
your module.