1756-clx/c module sending procedure – Rockwell Automation 1756-NEX Nexus Module User Manual
Page 64
D-6 1756-CLX/C Module Backplane Communication Tag List
Publication 1756-UM524B-EN-P - December 2008
1756-CLX/C Module Sending Procedure
The following tags are applied for this sequence. Refer the timing chart for more details.
• NX30_Send_Request
• NX50_Send_Done
• NX61_Send_Error_Code
Figure D.5 1756-CLX/C Module Sending Procedure Timing Chart
NX
Send-Process
CLX
NX30_Send_Request
(BOOL)
NX50_Send_Done
(BOOL)
1756-CLX/C
(1) Sends the data
(2) Sets NX61_Send_Error_Code
(3) Sets NX50_Send_Done
Ladder
Request Sending.
(1) Sets Send_Data and Data Buffer
Size NX80 tags
(2)
Sets NX30_Send_Request
(1) Checks NX61_Send_Error_Code has not set Error
(2)
Clears NX30_Send_Request.
(1) Clears NX61_Send_Error_Code
(2)
Clears NX50_Send_Done
Tags
NX61_Send_Error_Code
(DINT[32])
0 if success, Error code if failure