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Setting Data Links Section 5-2
Note 1. Node 1 is the master node. Node 1 must be registered as a participating
node.
2. The startup node (the node that sets the above DM Area parameters and
starts the data links) must be set as a participating node of the data links.
If not, the data links will not start.
Send size (number of
words) for master node
for area 1
Set the number of words in BCD between 0 and 1,000.
The total number of send words for master node of area 1
and area 2 must not exceed 1,000.
Set to 0 when area 1 is not to be used or when the master
node will transmit no data.
Send size (number of
words) for slave nodes for
area 1
Set the number of words in BCD between 0 and 1,000.
The total number of send words per slave node of area 1
and area 2 must not exceed 1,000.
Set to 0 when area 1 is not to be used or when the slave
node will transmit no data.
Start word for area 2 Set the word address in BCD.
CIO Area: 0000 to 6143
LR Area: LR 000 to LR 199 (CIO 1000 to CIO 1199) (See
note.)
DM Area: DM 00000 to DM 32767
EM Area: Banks 0 to 12: EM 00000 to EM 32767
Note: When a word between LR 000 and LR 199 is spec-
ified, the data link area will be allocated between words
CIO 1000 and CIO 1199 in the CIO Area.
Area for area 2 Set the area type of area 2 as a hexadecimal number.
IR Area: 80 Hex
LR Area: 86 Hex
DM Area: 82 Hex
EM Area Banks 0 to 7: 90 to 97 Hex
Banks 8 to 12: A8 to AC Hex
When area 2 is not used: 00 Hex
Send size (number of
words) for master node
for area 2
Set the number of words in BCD between 0 and 1,000.
The total number of send words per master node of area
1 and area 2 must not exceed 1,000.
Set to 0 when area 2 is not to be used, or when the mas-
ter node will transmit no data.
Send size (number of
words) for slave nodes for
area 2
Set the number of words in BCD between 0 and 1,000.
The total number of send words per slave node of area 1
and area 2 must not exceed 1,000.
Set to 0 when area 2 is not to be used, or when the slave
node will transmit no data.
First word to store data
link status
Set in BCD the first word used for storing data link status.
When automatic setup is used, status can be stored in
the IR or CIO Area only. The number of words used to
store status depends on the data link status storage for-
mat specification as below.
0 (*)
1 to 6128 (32 nodes max., 8-bit format: 16 words used)
*: When 0 is set, the status is saved in IR 1500 + unit
number x 25 (+ 7 to + 22).
Nodes to participate in
the data links
Turn ON the bits corresponding to the nodes participating
in the data links.
The data links will not start unless the startup node itself
is set as a participating node.
Item Setting range