Spectrum Controls 1746sc-INO4vi - Manual (Page 38)

28 SLC 500 ™ Isolated Analog Output Modules
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.