Controlnet i/o map-entry, Status words and, Error messages – Rockwell Automation 1785-Lx0C15 ControlNet PLC-5 Programmable Controllers User Manual User Manual
Page 119: Appendix d, Appendix, I/o map-entry status words
1785-UM022C-EN-P - February 2008
Appendix
D
ControlNet I/O Map-Entry
Status Words and
Error Codes
I/O Map-Entry
Status Words
The ControlNet status file is an integer data-table file that you specify
and configure with the I/O map for scheduled-I/O usage. It contains
status information about all of the ControlNet network’s scheduled
I/O connections. Each I/O map-table entry has a status-file offset field
pointing to three status words associated with the connection.
0
00
01
02
0
03
04
05
0
06
07
08
0
09
10
11
12
0
13
14
15
0
00
01
02
0
03
04
05
0
06
07
08
0
09
10
11
12
0
13
14
15
0
00
01
02
0
03
04
05
0
06
07
08
0
09
10
11
12
0
13
14
15
First Word
Immediate Inhibit Bit
PCSC Overflow Bit
PCSC New Data Bit
PCSC Enable Bit
Run Mode
Data
Underrun
Data
Overrun
Reserved
Reserved
Data Invalid Bit
Connection Error Bit
Reset
Bit
Inhibit Bit
Error Messages
System Bits
User Bits
For critical I/O points, always condition your logic with bits 8 and 9 of the first ControlNet status word.
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