Rockwell Automation 1794-APB/B FLEX I/O PROFIBUS Adapter Module User Manual - Manual (Page 48)

2–28 How Communication Takes Place and I/O Image Table Mapping
Publication 1794ĆUM057B-EN-P - November 2001
1794ĆIT8 Word/Bit Descriptions
Word
Decimal Bit
(Octal Bit)
Description
ReadWord1 00-15 (00-17) Reserved
ReadWord2 00-15 (00-17) Channel 0 Input data
ReadWord3 00-15 (00-17) Channel 1 Input data
ReadWord4 00-15 (00-17) Channel 2 Input data
ReadWord5 00-15 (00-17) Channel 3 Input data
ReadWord6 00-15 (00-17) Channel 4 Input data
ReadWord7 00-15 (00-17) Channel 5 Input data
ReadWord8 00-15 (00-17) Channel 6 Input data
ReadWord9 00-15 (00-17) Channel 7 Input data
ReadWord10 00-07 (00-07) Underrange bits - these bits are set if the input signal is below the input channel's minimum range.
08-15 (10-17) Overrange bits - these bits are set if 1), the input signal is above the input channel's maximum range,
or 2), an open detector is detected.
ReadWord11 00 (00) ColdJunction sensor underrange bit. - this bit is set if the coldjunction temperature is below 0 o C.
01 (01) ColdJunction sensor overrange bit. - this bit is set if the coldjunction temperature is above 70 o C.
02 (02) Bad Structure - this bit is set if there is an invalidthermocouple type selected.
03 (03) Powerup bit - this bit is set (1) until configuration data is received by the module.
04-06 (04-06) Critical Fault bits - If these bits are anything other than zero, return the module to the factory for repair.
07 (07) Unused- set to 0
08 (10) CalibrationRange bit - set to 1 if a reference signal is out of range during calibration
09 (11) CalibrationDone bit - set to 1 after an initiatedcalibration cycle is complete.
10 (12) CalibrationBad bit - set to 1 if the channel has not hada validcalibration.
11-15 (13-17) Unused- set to 0