Spectrum Controls 140 AUI 040 00sc - Manual (Page 26)

16-Channel Universal Analog Input Module
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3x+8 Not Used: Bits 1, 2
3x+8 EEPROM Error: Bit 3
An onboard re-writeable memory error has occured. Contact your technical support representative.
3x+8 ROM Failure: Bit 4
A read only memory error has occured. Contact your technical support representative.
3x+8 Data Mode Echo: Bits 6,5
The Module continuously outputs a bank of eight registers worth of data. The data for a given bank can be
paged between 2 modes. These are the standard channel input data and channel status data.
3x+8 Sequence Mode Echo: Bits 7
When in Auto Sequence Mode, the module ignores the channel bank select in the 4X-configuration word, and
instead sequences through both banks automatically. The values in the eight data registers belong to the bank
identified in the status word bank ID (3X+8 bit 1). The user must set aside 16 registers as a permanent image
of the channel data. During run time, the ladder need only determine the current bank for the eight data
registers (3x+0 through xx+7) in order to determine where the data should be copied into the 16-channel
register image.
When in Manual Sequence Mode the module reads only the eight channels identified by the Bank Select Bits.
3x+8 Bank Select Echo: Bits 8
This bit is used to show the selected bank channels. This will indicate individual bank selection when the Auto
Sequence mode in not used. The bank select is used for multiplexing out the Modules input data and status
data. The channel Status Mode disables the normal data input mode and reports the status on the selected
bank of 8 channels. The channel status bits echo back the selected input range data format and error status.
3x+8 RAM Failure: Bits 9
A random access memory error has occured. Contact your technical support representative.
3x+8 Watchdog Error: Bits 10
A watchdog timeout error occured. Contact your technical support representative.
3x+8 CPU Error: Bits 11
A central processing unit error has occured. Contact your technical support representative.
3x+8 CJC Error: Bits 12
A cold junction compensation error has occured. Check your onboard CJC sensor connections. These are
found on the terminal block.
3x+8 Broken Input Mode: Bits 13
Check your input connections for continuity.
3x+8 Configuration Error: Bit 14
An illegal configuration was attempted. When this occurs configuration will not be accepted by the module
and this flag will be set. By using 4x register bits 1 and 2 to set the module to “status” individual channels
flags can be checked to determine which channel or group is incorrect.
3x+8 Out of Range Error: Bits 15-16
These two bits indicate that an over or under range condition exists on at least one channel within the group.
Bits 1-2 correspond to two groups of eight channels each. When an Out of Range Flag is set, the Channel
Status mode (see Section 4.3) can be enabled to report which channel is out of range.
+ Note: An over range error indicates that a channel input is a value greater than or equal to the maximum for the range selected for
that channel group. An under range error indicates that a channel input is a value less than or equal to the minimum for the selected
range.