CJ1W-EIP21 Omron, CJ1W-EIP21 Datasheet - Page 279

• 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

Receiving Explicit Messages
CPU Information Read (Service Code: 0E Hex)
Command Block
Response Block
Parameters
Note A body format of either 8 bits or 16 bits is possible.
Reads CPU Unit information, including operating mode, fatal/non-fatal errors,
and the CPU Unit model.
Service code (command, response): 0E Hex is specified for commands.
For responses, the highest bit be ON and 8E 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): The read information is specified by the attribute ID.
The attribute IDs are listed in the following table.
Read data (response): The specified information is returned in order.
The CPU Unit operating mode is returned in 1-word (2-byte) hexadecimal for-
mat, as follows:
0001 Hex: PROGRAM mode; 0002 Hex: MONITOR mode;
0004 Hex: RUN mode
Service Code
64
65
66
0E
• CPU Unit operating mode (attribute ID = 64 Hex).
Class ID
Attribute ID (Hex)
• CPU Operating Mode (when Attribute ID = 64 Hex)
• CPU Unit Errors (when Attribute ID = 65 Hex)
• CPU Unit Model (when Attribute ID = 66 Hex)
(2F)
C4
(*)
Reads the CPU Unit operating mode.
Reads if there are any fatal or non-fatal errors in the CPU Unit.
Reads the CPU Unit model.
Instance ID
00
(*)
Attribute ID
Service Code
CPU Unit operating mode
CPU Unit errors
CPU Unit model
8E
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.
Contents
Attribute Value
RUN mode
MONITOR mode
PROGRAM mode
1 word (2 bytes)
1 word (2 bytes)
22 bytes
Attribute value size
Section 9-2
251