Rockwell Automation 1794-XXXX FLEX I/O High-Density Analog Modules - Manual (Page 66)

Publication 1794-UM062A-EN-P - September 2012
58 Data Tables
Memory Map – 1794-IE4XOE2/B and 1794-IE4XOE2XT Analog Combo Module
Decimal Bit 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00 Size
Octal Bit 17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00 Read/Write Words
S Analog Value Channel 0 Read word 1
S Analog Value Channel 1 Read word 2
S Analog Value Channel 2 Read word 3
S Analog Value Channel 3 Read word 4
PU Not used – set to 0 W1 W0 U3 U2 U1 U0 Read word 5
S Analog Data – Output Channel 0 Write word 1
S Analog Data – Output Channel 1 Write word 2
Not used – set to 0 OE1 OE0 Write word 3
Not used C5 C4 C3 C2 C1 C0 0 0 F5 F4 F3 F2 F1 F0 Write word 4
Not used – set to 0 Write word 5…10
Where: PU = Power up bit – included in series B modules only.
W = Diagnostic bits for current output wire broken or load resistance high. (Not used on voltage outputs.)
U = Underrange bits for 4…20 mA inputs
S = Sign bit (in 2’s complement)
OE = Output enable bits (bit 00 corresponds to output 0, bit 01 corresponds to output 1, and so on.
C = Configure select bit
F = Full range bit
Module Image
I/O Image
Input Data Channel 0
Input Data Channel 1
Input Data Channel 2
Input Data Channel 3
Output Data Channel 0
Output Data Channel 1
Underrange & Diag.
Not used
Not used
Not used
Not used
Not used
Not used
Not used Full Range and Configure Select
Not used
Input Size
Output Size
0 to 4 Words
0 to 5 Words Read
Write
OE
PU
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