Allen-Bradley MicroLogix 1400 Instruction Manual page 73

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Modbus RTU Slave Diagnostic Counters Block (Data Link Layer)
Word Bit
6 -
7 -
8 -
9 0
1
2
3
4...15
10 -
11 -
12 -
13 -
14 -
15...22 -
Modbus RTU Slave Diagnostic Counters Block (Presentation Layer)
Word Bit
43 -
44 -
45 -
46 -
47 0...7
8...15
48 -
49 -
50 -
51 0...7
8 and 9
10...15 Reserved
52 -
53 -
54 -
55 -
56 -
57 -
58 -
59 -
60 -
Description
Diagnostic Counters Category Identifier Code (always 2)
Length (always 30)
Format Code (always 4)
CTS
RTS
Reserved
Reserved
Reserved
Total Message Packets Sent
Total Message Packets Received for This Slave
Total Message Packets Received
Link Layer Error Count
Link Layer Error Code
Reserved
Description
Diagnostic Counters Category Identifier Code (always 10)
Length (always 14)
Format Code (always 0)
Pre-Send Time Delay
Node Address
Reserved
Inter-Character Timeout
RTS Send Delay
RTS Off Delay
Baud Rate
Parity
Diagnostic Counters Category Identifier Code (always 6)
Length (always 32)
Format Code (always 0)
Presentation Layer Error Code
Presentation Layer Error Count
Execution Function Error Code
Last Transmitted Exception Code
Data File Number of Error Request
Element Number of Error Request
Function Files
Publication 1766-RM001A-EN-P - October 2008
71