Rockwell Automation 1798-IB4 FlexArmor User Manual - Manual (Page 26)

Publication 1798-UM001B-EN-P - November 2002
2-12 How Communication Takes Place and I/O Image Table Mapping
Description of 1798-OE2 Image Table Mapping
Memory Map of Analog Output Module Image Table - 1798-OE2
I/O Image
Input Size
0 to 1 Words PU Not Used Diagnostics
Analog Output Data 0
Output Size Analog Output Data 1
1 to 6 Words Not Used
Not Used
Not Used OE
Not Used Config. Select Not Used Full Range
Not Used
Not Used
Not Used
Not Used
Not Used
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
PU Not Used - Set to Zero W1 W0 Read Word 1
S Analog Value Channel 0 Write Word 1
S Analog Value Channel 1 Write Word 2
S Not Used Write Word 3
S Not Used Write Word 4
S Not Used - Set to 0 OE1 OE0 Write Word 5
S Not Used - Set to 0 C1 C0 Not Used - Set to 0 F1 F0 Write Word 6
S Not Used - Set to 0 Write Word 7 thru 14
Where PU = Power up bit; W = Diagnostic bits for current output broken or load resistance high (Not used on voltage
outputs.); OE = Output enable bits (bit 00 corresponds to output 0, bit 01 corresponds to output 1. ATTENTION: These bits
must be set to 1. C = Configure select bit; F = Full range bit; S = Sign bit (in 2’s complement)