Rockwell Automation 1794-IF4I, -OF4I, IF2XOF2I, -IF4IXT, -IF4ICFXT, -OF4IXT, IF2XOF2IXT FLEX I/O Isolated Analog Modules - Manual (Page 91)

Publication 1794-6.5.8 - January 2010
Communication and I/O Image Table Mapping with the DeviceNet/ControlNet Adapter 91
Isolated Analog Combo Module (Cat. No. 1794-IF2XOF2I Series B)
Image Table Mapping
Module Image
I/O Image
Input Data Channel 0
Input Data Channel 1
Read Back Output Data Channel 0
Read Back Output Data Channel 1
Output Data Channel 0
Output Data Channel 1
Input Size
Output Size
0 to 7 Words
0 to 7 Words Read
Write
Real Time Sample
PU FP CF BD DN
V1 V0 U1 U0 W1 W0 P1 P0
Set to 0 EN S1 S0
Channel Configuration
Real Time Sample Programmed Interval
IC RV QK CK GO Channel # 1
Channel Filters
Q0 Q1 TR IT
Table 5.11
Analog Combo Module (1794-IF2XOF2I) Read
Word/Dec. Bit 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
Word/Octal Bit 17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00
Read Word 0 Input Data Channel 0
Word 1 Input Data Channel 1
Word 2 Read Back Output Channel 0
Word 3 Read Back Output Channel 1
Word 4 0 Real Time Sample
Word 5 PU FP CF 0 Reserved 0 0 0 0 0 BD DN 0
Word 6 0 0 0 0 P1 P0 0 0 0 0 V1 V0 W1 W0 U1 U0
Where:
PU = Power up unconfigured state
FP = Field power off
CF = In configuration mode
BD = Calibration bad
DN = Calibration accepted P0 and P1 = Output holding in response to Q0 thru Q1
W0 and W1 = Wire off current loop status for input channels 0 and 1
respectively. (Not used on voltage outputs.)
U0 and U1 = Underrange for input channels o and 1 respectively.
V0 and V1 = Overrange for input channels o and 1 respectively.