Allen-Bradley 1794-IF4I User Manual

Publication 1794-6.5.8 - January 2010
86 Communication and I/O Image Table Mapping with the DeviceNet/ControlNet Adapter
4 Output Isolated Analog Module (Cat. No. 1794-OF4I) Image Table
Mapping
Module Image
I/O Image
Read Back Channel 0
Read Back Channel 1
Read Back Channel 2
Read Back Channel 3
Input Size
Output Size
1 to 9 Words
0 to 6 Words
PU FP CF BD DN
Channel Configuration
IC RV QK CK GO
Channel #
Set to 0EN
Hold Outputs
Wire-off
S1 S0
Output Data Channel 0
Output Data Channel 1
Output Data Channel 2
Output Data Channel 3
1 Q3 Q2 Q1 Q0
Not Used
Not Used
TR IT
Table 5.7
Analog Output Module (1794-OF4I) 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 1 Read Back Channel 0
Word 2 Read Back Channel 1
Word 3 Read Back Channel 2
Word 4 Read Back Channel 3
Word 5 PU FP CF 0 Reserved 0 0 0 0 0 BD DN 0
Word 6 0000P3P2P1P00000W3W2W1W0
Where:
PU = Power up unconfigured state
FP = Field power off
CF = In configuration mode
BD = Calibration bad
DN = Calibration accepted
P0 thru P3 = Output holding in response to Q0 thru Q3
W0 thru W3 = Wire off current loop status for channels 0 thru 3 respectively. (Not used on voltage outputs.)

Allen-Bradley 1794-IF4I Specifications

General

Brand	Allen-Bradley
Model	1794-IF4I
Category	I/O Systems
Language	English