Dm area: cs/cj cpu bus unit area – Omron CQM1H-CLK21 User Manual

Page 374

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351

Memory Areas

Appendix B

DM Area: CS/CJ CPU Bus Unit Area

The CS/CJ CPU Bus Unit Area (DM Area) is allocated to CS/CJ CPU Bus Units according to the unit numbers
assigned to them, as shown below. Each Unit is allocated 100 words, of which 10 words are used. In the Con-
troller Link Unit this area is called the DM Area.

Software Switches (DM30000 + 100

×

Unit No.) (See pages 145, 243, 249, 318.)

Unit no.

Words

Unit no.

Words

0

DM30000 to
DM30009

8

DM30800 to
DM30809

1

DM30100 to
DM30109

9

DM30900 to
DM30909

2

DM30200 to
DM30209

10

DM31000 to
DM31009

3

DM30300 to
DM30309

11

DM31100 to
DM31109

4

DM30400 to
DM30409

12

DM31200 to
DM31209

5

DM30500 to
DM30509

13

DM31300 to
DM31309

6

DM30600 to
DM30609

14

DM31400 to
DM31409

7

DM30700 to
DM30709

15

DM31500 to
DM31509

Data link mode
000: Manual
001: Automatic, equality layout

15 14 13 12 11 10 9

8

7

6

5

4

3

2

1

0

0

0

0

0

0

0

0

CS1 CPU Bus Unit PLC Setup Initialization (See note 1.)

0: Do not initialize CS1 CPU Bus Unit PLC Setup
1: Initialize CS1 CPU Bus Unit PLC Setup

Polling node/polled node bit
0: Polling node
1: Polled node

0

Data Link Start Bit
Start: Changed from OFF to ON or set to ON

when power is turned ON.

Stop: Changed from ON to OFF.

0: Always set to 0.

Note 1: Initializes the network parameters registered in the CS1 CPU Bus Unit PLC Setup Area on the CPU Unit

and clears the data link tables.

2: Be sure to set the bit in the DM Area's (CPU Bus Unit Area's) software switches (D30000 + 100

×

unit

number) described as "always set to 0" to 0. Not doing so may result in the data link not starting properly.
If a data link is started with bit 7 of the software switches set to 1, the data link status will be stored in a
format different to the one described in this manual (when using CS-series or CJ-series Controller Link Units).

Wired Network 62 Node
Enable Bit
0: 32 nodes max.
1: 62 nodes max.

101: Automatic, 1:N allocation

Data link status
storage format
0: 8-bit format
1: 4-bit format

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