Compact I/O DeviceNet Scanner Module
17
Publication 1769-IN060C-EN-P - May 2002
Data Organization
The scanner uses the input and output data images to transfer data, status and
command information between the scanner and the controller. The basic structure
is shown below. Refer to the
Compact I/O DeviceNet Scanner Module User Manual
,
publication 1769-UM009A-EN-P, for more detailed information.
Input Data Image
The input data image is transferred from the scanner module to the controller.
Output Data Image
The output data image is transferred from the controller to the scanner module.
The following table shows the bit descriptions for the Module Command Array.
Word
Description
Data Type
0 to 63
Status Structure
64-word array
64 and 65
Module Status Register
2 words
66 to 245
Input Data Image
180-word array
Word
Description
Data Type
0 and 1
Module Command Array
2-word array
2 to 181
Output Data Image
180-word array
Word
Bit
Operating Mode
0
0
1 = Run, 0 = Idle
1
1 = Fault
2
1 = Disable Network
3
Reserved
(1)
(1)
DO NOT manipulate Reserved Bits. Doing so may interfere with future compatibility.
4
1 = Reset
5 to 15
Reserved
1
0 to 15
Reserved
