Publication 1762-RM001C-EN-P
Function Files 3-17
13 to 18 - Reserved
19 - Bad Character Count
20 to 22 - Reserved
Table 3.17 Active Node Table Block
Word Description
23 Active Node Table Category Identifier Code (always 3)
24 Length (always 4 for DH-485, always 0 for DF1 Full-Duplex, DF1 Half-Duplex Slave,
Modbus RTU Slave, and ASCII)
25 Format Code (always 0)
26 Number of Nodes (always 32 for DH-485, always 0 for DF1 Full-Duplex, DF1
Half-Duplex Slave, Modbus RTU Slave, and ASCII)
27 Active Node Table – Nodes 0 to 15 (CS0:27/1 is node 1, CS0:27/2 is node 2, etc.) This
is a bit-mapped register that displays the status of each node on the network. If a bit is
set (1), the corresponding node is active on the network. If a bit is clear (0), the
corresponding node is inactive.
28 Active Node Table – Nodes 16 to 31 (CS0:28/1 is node 16, CS0:28/2 is node 17, etc.)
This is a bit-mapped register that displays the status of each node on the network. If a
bit is set (1), the corresponding node is active on the network. If a bit is clear (0), the
corresponding node is inactive.
29 to 42 Reserved
Table 3.16 ASCII Diagnostic Counters Block
(MicroLogix 1500 1764-LRP Processors only)
Word Bit Description
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