IDEC FC6A-C16K1CE - Page 181

FC6A S ERIES M ICRO S MART A LL - IN -O NE T YPE C OMMUNICATION M ANUAL FC9Y-B1730 8-13
8: J1939 C OMMUNICATION
Example1: When updated by local address conflict
Example 2:When updated by receiving CA address information
Example3: When CA#4 NAME is set to 0 in Example 2
CA address table
Local NAME +0 words 9234….5678h * Arbitrary Address Capable = 1
Local address +4 words 30 → Updated to 128
CA#1 NAME +5 words 1345….6789h
CA#1 address +9 words 150
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CA address table
CA address
information
Local NAME +0 words 2233….5678h
Local address +4 words 128 A844….1111h NAME
CA#1 NAME +5 words 2444….6789h 130 Address
CA#1 address +9 words 150
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Address of CA that matches NAME is updated
CA#4 NAME +20 words A844….1111h
CA#4 address +24 words 50 → Updated to 130
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CA address table
CA address
information
Local NAME +0 words 2233….5678h
Local address +4 words 128
A844….1111h NAME
CA#1 NAME +5 words 2444….6789h 130 Address
CA#1 address +9 words 150
•
•
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The CA address table is not updated because the
NAME does not exist in the CA address table
CA#4 NAME +20 words
0h
CA#4 address +24 words 50 Not updated
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