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Memory Areas
Note
Software Switches (D30000 + 100 × Unit Number)
CPU Bus Unit Settings Initialization (See note)
0: Do not initialize CPU Bus Unit Settings
1: Initialize CPU Bus Unit Settings
Polling Node/Polled Node Bit
0: Polling node
1: Polled node
Note
Initializes the network parameters registered in the CPU Bus Unit Setting Area in the CPU Unit and
clears the data link tables.
40
Network Participation Status
If a node is participating in a network, the bit corresponding to the node
address will be ON. Node addresses (1 through 62) and their corresponding
bits are listed in the following table. (Bits 14 and 15 of word +5 are always 0.)
Word: 1500 + (25 x Unit Number) + 2 to 5
Bit
15
14 13 12 11 10
+2
16
15 14 13 12 11 10
Word
+3
32
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
+4
48
47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
+5
-
-
62 61 60 59 58 57 56 55 54 53 52 51 50 49
Even if the local node is disconnected from the network, only the bit corre-
sponding to the local node is turned OFF (i.e., the entire status area partici-
pating in the network is not turned OFF). While the local node is
disconnected, the bits corresponding to the other nodes will not be refreshed,
even if the participation status of other nodes changes.
Data link Star t Bit
Start: Changed from OFF to ON or already ON when power is turned ON
Stop: Changed from ON to OFF
Data Link Mode
00: Manual
01: Automatic for CIO Area only
10: Automatic for DM Area only
11: Automatic for CIO and DM Areas
Number of Send Words per Node
CIO Area
DM Area
00: 4 words
8 words
01: 8 words
16 words
10: 16 words
32 words
11: 32 words
64 words
9
8
7
6
5
4
3
9
8
7
6
5
4
Section 3-6
2
1
0
3
2
1
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