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Receiving Explicit Messages Section 6-5
Response Block
Parameters Destination node address (command): The node address of the CS/CJ-
series DeviceNet Unit to which to write data, specified in 1-byte (2 digit) hexa-
decimal.
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 002F Hex.
Instance ID (command): Always 0000 Hex.
Attribute ID (command): Information to write is specified by the attribute ID.
The attribute IDs are listed in the following table.
• CPU Operating Mode (Attribute ID = 64 Hex)
Changes the CPU Unit operating mode.
The Attribute Values are as follows:
0001 Hex: PROGRAM mode; 0002 Hex: MONITOR mode;
0004 Hex: RUN mode
Note The specified code for the above operating modes are 1-word (2-byte
data, and are specified with the low byte first. For example, for PRO-
GRAM mode, the code is specified as 01 Hex followed by 00 Hex. Ac-
cordingly, the low to high bytes for the above codes are set as high
to low bytes in I/O memory, when setting the codes as data for oper-
and S of CMND(490).
• Clearing CPU Unit Errors (when Attribute ID = 65 Hex)
Clears any fatal or non-fatal errors in the CPU Unit. Sets the error clear
code to Attribute Value. The error clear codes are listed in the following
table.
No. of bytes received
Destination node address
Service Code
Attribute ID (Hex) Contents Attribute value size
64 CPU Unit operating mode 1 word (2 bytes)
65 CPU Unit errors 1 word (2 bytes)
Error code
(Hex)
Data cleared
FFFE Current error (clears the highest priority error)
0008B Interrupt task error
009A Basic I/O error
009B PC Setup error
02F0 Inner Board non-fatal error
0300 to 035F Special I/O Unit error
00A0 to 00A1 SYSMAC BUS error
0500 to 055F Special I/O Unit settings error
00E7 I/O verification error
When registered and actual I/O tables are different
When disconnecting or connecting I/O Units