Rockwell Automation 1769-BOOLEAN Compact I/O Module Reference Manual - Manual (Page 44)

Publication 1769-RM016A-EN-P - July 2006
44 Module Data, Status, and Configuration
1769-BOOLEAN Module
Input Data File The input data file lets you access module input read data for use in the control
program, via word or bit access. The data file structure is shown in the table
below. For each module, word 0, bits 0
…
7 in the input data file contain the
values of the real inputs. For each module, word 1, bits 0
…
3 in the input data
file contain the state of the module's output control circuits.
1769-BOOLEAN Module Input Data File
1769-BOOLEAN Module
Output Data File The output data file lets you access module write data for use in the control
program, via word or bit access. The data file structure is shown in the table
below.
1769-BOOLEAN Output Data File
Direct Control of Module Outputs
The module's outputs can be directly determined by the control program
when the outputs are configured to have Boolean Control disabled.
Refer to Output Control (DB) on page 51, for information on configuring the
module's outputs for direct control mode.
When a module output has Boolean Control disabled, the directed state of that
output is controlled by the corresponding bit (OUT0 through OUT3) in the
output data file. Setting the bit (1) turns the output ON, clearing the bit (0)
turns the output OFF.
TIP
Shaded bits always must be set to 0.
WO
RD
Bit Position
15 14 13 12 1 10 9 8 7 6 5 4 3 2 1 0
0 IN7 IN6 IN5 IN4 IN3 IN2 IN1 IN0
1 03 02 01 00
TIP
Shaded bits must be set to 0.
Bit Position
15 14 13 12 1 10 9 8 7 6 5 4 3 2 1 0
WO
RD
0 OUT3 OUT2 OUT1 OUT0
1 V7 V6 V5 V4 V3 V2 V1 V0