Rockwell Automation 1756-NEX Nexus Module - Manual (Page 60)

D-2 1756-CLX/C Module Backplane Communication Tag List
Publication 1756-UM524B-EN-P - December 2008
About the Nexus Communication Flags (NX20 – NX91)
Boot /Reboot 1756-CLX/C Module Procedure
The following tags are applied for this sequence. Refer the timing chart for more details.
• NX20_Module_Enable
• NX40_Module_Enabled
• NX47_Module_Ready
• NX48_Module_Enable_Ack
Figure D.1 Boot and Parameter Configuration Timing Chart
RUN/PROG
Mode
S:FS (First Scan
Flag)
NX48_Module_
Enable_Ack
(BOOL)
NX47_Module_
Ready
(BOOL)
Power on
1756-CLX/C
NX40_Module_
Enabled
(BOOL)
NX20_Module
_Enable
(BOOL)
OS SMG/BS NX
Management
Process
NX
Configuration
Check
NX Dlink
Initialization
NX
Initialization
PROG
OFF ON
NX
Configuration
Check
NX Dlink
Initialization
NX
Initialization
RUN
OFF ON
Change Parameter
(S/W of 56NEX)