Publication 1763-RM001C-EN-P - October 2009
Function Files
57
Communications Status
File
The Communications Status (CS) File is a read-only file that contains
information on how the controller communication parameters are
configured and status information on communications activity.
The communications status file uses:
There is one Communications Status File for each communications port.
Communications Status File CS0 corresponds to Channel 0 on the
controller. Ethernet Communications Status File ES corresponds to
Channel 1 on the controller.
The data file is structured as shown below:
The following tables show the details of each block in the
Communications Status File.
Communications Status File Size
Controller
Number of Word Elements
MicroLogix 1100
71 1-word elements
TIP
You can use the Communications Status File information
as a troubleshooting tool for communications issues.
Communications Status File
Word
Description
Applies to Controller
Details
on Page
0 to 5
General Channel Status Block
MicroLogix 1100
6 to 22
DLL Diagnostic Counters Block
MicroLogix 1100
23 to 42
DLL Active Node Table Block
MicroLogix 1100
words 43 to 70 when using DF1 Full-Duplex, DF1 Half-Duplex, DH-485, or ASCII:
43
End of List Category Identifier Code
(always 0)
MicroLogix 1100
--
43 to 70
Reserved
•
MicroLogix 1100
--
words 43 to 70 when using Modbus RTU Slave, Master or DF1 Half-Duplex Master:
43 to 69
Modbus Slave Diagnostic Counters Block
•
MicroLogix 1100
70
End of List Category Identifier Code
(always 0)
•
MicroLogix 1100
--
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