CJ1W-EIP21 Omron, CJ1W-EIP21 Datasheet - Page 280

• Manufacturer Part Number: CJ1W-EIP21
• Description: Ethernet I/P Module
• Manufacturer: Omron

Specifications of CJ1W-EIP21

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

CPU Unit Write (Service Code: 10 Hex)
Command Block
Response Block
Parameters
252
Receiving Explicit Messages
Note The codes for the above modes are 1-word (2-byte) data and are returned in
Note A body format of either 8 bits or 16 bits is possible.
low byte first. For example, for PROGRAM mode, the code is returned as 01
Hex followed by 00 Hex.
The CPU Unit fatal/non-fatal error data is returned in 1-word (2-byte) hexa-
decimal format, as follows:
01 Hex: Error; 00 Hex: No error.
The CPU Unit model is returned in ASCII.
Size: 2 bytes (Always 1400 Hex) + Model: 20 bytes (fixed). Unused area is
filled with 20 Hex (spaces) and returned.
This PLC Object service writes CPU Unit information, including the operating
mode and clearing errors.
Service code (command, response): 10 Hex is specified for commands. For
responses, the highest bit will turn ON and 90E Hex will be returned.
Class ID (command): Always C4 (2F).
The class ID depends on the unit version. The class ID is C4 for unit version
2.0 or later, and 2F for unit version 1.0.
Instance ID (command): Always 00 Hex.
Attribute ID (command): Information to write is specified by the attribute ID.
The attribute IDs are listed in the following table.
Service Code
64
65
10
• CPU Unit Errors (when Attribute ID = 65 Hex)
• CPU Unit Model (when Attribute ID = 66 Hex)
Attribute ID (Hex)
Class ID
(2F)
C4
(*)
Instance ID
00
(*)
Attribute ID
Byte Byte
Attribute Value
CPU Unit operating mode
CPU Unit errors
Unit name
Service Code
Contents
The class ID depends on the unit version.
Version 2.0 or later: The class ID is C4.
Version 1.0: The class ID is 2F.
90
20 bytes
1: Error
Byte Byte Byte
1 word (2 bytes)
1 word (2 bytes)
Attribute value size
Section 9-2