CJ1W-EIP21 Omron, CJ1W-EIP21 Datasheet - Page 413
CJ1W-EIP21
Manufacturer Part Number
CJ1W-EIP21
Description
Ethernet I/P Module
Manufacturer
Omron
Datasheet
1.CJ1W-EIP21.pdf
(469 pages)
Specifications of CJ1W-EIP21
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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Specify the size of Link Address when the Extended Link Address Size is set to “1.” The following diagram
shows the Port Segment value in this case.
Always set the Link Address to an even number of bytes. If there is an odd number of bytes, pad the Link
Address with “00” so that it has an even number of bytes.
Logical Segment
The Logical Segment is used to specify the request path.
The 32-bit logical address format is reserved and cannot be used.
The 8-bit and 16-bit logical address can be used for the Class ID and Instance ID, which specify the request
path.
CIP Message Communications
0
0
0
0
1
1
1
1
0
0
1
1
Segment Type
Segment Type
4
→
7
0
Logical Format
7
0
1
Logical Type
6
0
0
0
1
1
0
0
1
1
6
0
7
3
5
1
0
1
0
1
5
0
6
0
1
0
1
0
1
0
1
5
0
Link Address
2
4
Extended Link
Address Size
Logical Type
4
Class ID
Instance ID
Member ID
Connection Point
Attribute ID
Special (Do not use the logical addressing definition for the Logical Format.)
Service ID (Do not use the logical addressing definition for the Logical Format.)
Reserved
8-bit logical address
16-bit logical address
32-bit logical address
Reserved
3
3
Segment Format Bits
4
1
2
2
1
0
Logical Format
· · · · · · · · · · · ·
3
Port Identifier
1
2
· · · · · ·
0
1
0
Description
Description
7
7
6
6
Link Address Size
5
5
Link Address
4
4
3
3
2
2
1
1
0
0
Appendix D
→
385
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