User-set Allocations

 

 

 

 

Section 4-4

l is the first word in the Allocation Size Setup Table and is specified at words m+5 and m+6

Bit 15

08 07

00

 

I+0

Node address 0 OUT size (bytes)

 

 

Node address 0 IN size (bytes)

 

I+1

Node address 1 OUT size (bytes)

 

 

Node address 1 IN size (bytes)

 

to

 

to

 

 

 

I+62

Node address 62 OUT size (bytes)

 

Node address 62 IN size (bytes)

 

I+63

Node address 63 OUT size (bytes)

 

Node address 63 IN size (bytes)

 

Step 4: Turn ON the Slave User Allocations Switch

Turn ON the Slave User allocations Switch (word n, bit 11). This will make the DeviceNet Unit read allocation results data for the slaves above from the CPU Unit and create a scan list based on data for slaves that are actually online prior to starting remote I/O communications with the scan list enabled.

Note The Master User Allocations Switch not only reads slave allocation data, but it also enables the scan list.

Master User Allocations Table in the allocated DM Area words

Bit

m+1 wd

 

 

OUT block 1

 

 

 

 

 

area

 

 

m+2 wd

First word of OUT block 1

Specify the first word.

m+3 wd

 

 

IN block 1

 

 

 

 

 

 

 

area

 

 

 

 

 

 

 

m+4 wd

First word of IN block 1

Specify the

m+5 wd

 

 

Size Setup Table

first word.

 

 

 

Area

 

 

m+6 wd

First word of Size Setup Table

Specify the

 

 

 

 

size.

 

 

Allocation Size Setup Table

Set first word.

in allocated DM Area words

 

 

 

 

 

 

Bit

Address 0

Address 0

 

 

I wd

 

 

OUT size

IN size

 

 

I+1 wd

Address 1

Address 1

 

 

OUT size

IN size

 

 

to

Address 63

Address 63

 

I+63 wd

 

OUT size

IN size

OUT block

Bit

First word

Node address 0

specified

Node address 1

 

Output to Slaves

Node address 63

IN block

Bit

First word Node address 0 specified

Node address 1

Input from Slaves

Node address 63

Specify the first word.

Note 1. Any order can be used for the OUT 1 and IN 1 blocks.

2.Node addresses do not have to correspond between output block 1 and in- put block 1.

Example: This is not necessary.

 

 

 

OUT block 1

IN block 1

 

 

 

 

 

 

Node address 01

 

Node address 01

 

 

 

Node address 02

 

Node address 02

 

Node address 03

 

 

3. The start bit for node addresses must always be bit 00, and never bit 08.

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Omron CJ1W-DRM21, CS1W-DRM21 operation manual Turn on the Slave User Allocations Switch