Rockwell Automation 1788-DNBO DeviceNet Daughtercard Installation Instructions - Manual (Page 11)

DeviceNet Daughtercard 11
Publication 1788-IN053A-EN-P - December 2001
Module Command Register Bit Definitions
The bits of the Module Command Register are defined as follows:
Input Structure
The controller receives input I/O by reading input data from an input structure in the
1788-DNBO daughtercard. The daughtercard receives input data from DeviceNet modules
and delivers a copy of these values to the controller. The input structure consists of one 32-bit
status register and a variable size 32-bit array of up to 124 words for input data. The 32-bit
status register reflects the current state of several key module-level operational parameters.
The input structure consists of these data elements.
Bit Name Description
0 Run 1 = run mode
0 = idle mode
1 Fault 1 = fault network
2 DisableNetwork 1 = disable network
3 HaltScanner 1 = halt module
(The daughtercard ceases all operation.)
4 Reset 1 = reset module
(Put back to 0 to resume operation.)
5 - 31 {Reserved} unused
IMPORTANT
If the daughtercard is halted because the HaltScanner
bit is set, power must be physically recycled to restart
the module.
Input Structure Element Data Type
module status register 1 x 32-bit register
input_data 123 x 32-bit variable size
data array