Publication 1763-RM001B-EN-P - April 2007
384 Communications Instructions
Channel 1 Ethernet
In each MSG instruction setup screen, enter in RIx:y for the Routing
Information FIle, where x is an existing RI file number or an unused file
number, and y is an unused RI element number. Each Channel 1 Ethernet
MSG Instruction must have its own RIx:y. If the RIx:y entered in the MSG
setup screen does not yet exist, then the programming software will
automatically create it when the rung is verified.
Routing Information File Element
Sub-
Element
Bit Description
0 - Subtype of Ethernet Message:
•16 (0x10) for normal Multi-Hop MSG
•17 (0x11) for Remote Multi-Hop MSG for a DH+ Network
1-
High word of 32-bit target IP address
(1)
(1) IP address is stored in network byte order (big-endian order). For example, IP address 10.121.30.11 will be stored as
0x0a791e0b. Then the IP address will be stored as described in the table below.
2 - Low word of 32-bit target IP address
3 8 to 15 Internal Object Identifier (IOI) size in words (1 to 5)
0 to 7 ASA Service Code
4 to 8 - ASA Internal Object Identifier (IOI)
9 - ASA Connection Path Size in words (1 to 8)
10 to 17 - ASA Connection Paths
18 to 19 - Reserved for future use - always 0
Sub-Element Bit Value
1 8 to 15 0x79 (decimal value: 121)
0 to 7 0x0a (decimal value: 10 )
2 8 to 15 0x0b (decimal value: 11 )
0 to 7 0x1e (decimal value: 30 )
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