Allen-Bradley MicroLogix 1100 Instruction Set Reference Manual

Publication 1763-RM001C-EN-P - October 2009
66 Function Files
66 - Function Code 6 Message Counter
67 - Function Code 8 Message Counter
68 - Function Code 15 Message Counter
69 - Function Code 16 Message Counter
Modbus RTU Master Diagnostic Counters Block (Data Link Layer)
Word Bit Description
6 - Diagnostic Counters Category Identifier Code (always 2)
7 - Length (always 30)
8 - Format Code (always 9)
9 0 CTS
1RTS
2 Reserved
3 Reserved
4 to 15 Reserved
10 - Total Message Packets Sent
11 - Reserved
12 - Total Message Packets Received
13 - Link Layer Error Count
14 - Link Layer Error Code
15 to 22 - Reserved
Modbus RTU Slave Diagnostic Counters Block (Presentation Layer)
Word Bit Description
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Allen-Bradley MicroLogix 1100 Specifications

General

Processor	32-bit
Programming Software	RSLogix 500
Mounting	DIN rail or panel mount
Power Supply	24V DC
Type	Compact PLC
Digital Inputs	12
Digital Outputs	8
Analog Inputs	4 (depending on model)
Analog Outputs	Optional with expansion module
Programming Language	Ladder Logic
Operating Temperature	0 to 55 °C (32 to 131 °F)
Series	MicroLogix