Spectrum Controls 140 ACI 052 00sc - Manual (Page 39)

4.4 Channel Status (Registers 3x+ 0 through 3x+7)
As described in Section 2.5, register 4x bits 1and 2 can be set to allow
monitoring of individual channel status (set to “0” and “1”
respectively). You will then be displaying eight channels of status
information. As described below, bits 1-4 provide four different
pieces of error information specific to that input channel. Bits 5-11
merely confirm what setup has been created for that feature in
configuration register 4x. Bits 12-16 will indicate what channel’s
status is being displayed.
Channel Status Register:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Channel Number
Filter Selection
Input Data Format
Range Selected
Under range
Over range
Configuration error
Calibration error
3x+0 . . . 7 Calibration Error Flag: Bit 1
The calibration error flag is a fatal error. When the flag is set to “1”
the ADC cannot calibrate within specifications.
3x+0 . . . 7 Configuration Error Flag: Bit 2
The calibration error flag is a fatal error. When the flag is set to “1”
there is a configuration mismatch. Configuration errors include any
illegal configuration, such the selection of an unsupported format or
filter option, or configurations that must be the same for all channels
within a group of channels.
3x+0 . . . 7 Over Range Flag: Bit 3
This is a nonfatal over range flag. The bit is set to “1” when an input
value is read within one count of the maximum range value. When
the input value is within normal limits the flag is automatically reset
to “0.”
Installation Instructions
32-Channel Analog Input Module
Quantum Series 140 ACI 052 00sc
33