Allen-Bradley MicroLogix 1100 Instruction Set Reference Manual

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 58
6 to 22 DLL Diagnostic Counters Block MicroLogix 1100 60
23 to 42 DLL Active Node Table Block MicroLogix 1100 69
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 65
70 End of List Category Identifier Code
(always 0)
•MicroLogix 1100 --
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Allen-Bradley MicroLogix 1100 Specifications

General

Brand	Allen-Bradley
Model	MicroLogix 1100
Category	Controller
Language	English