Omron CS1W-DRM21, CJ1W-DRM21 operation manual 171

Receiving Explicit Messages		Section 6-5
	Error code	Data cleared
	(Hex)
	00F7	Battery error
	0200 to 020F	CS/CJ-series CPU Bus Unit error (last 2 digits are binary code for
		the Unit No.)
		For parity errors generated when data transferred between CS/CJ-
		series CPU Bus Unit and CPU Unit
		For watchdog timer errors in CS/CJ-series CPU Bus Unit
	0400 to 040F	CPU Bus settings error (last 2 digits are binary code for the Unit
		No.)
	4101 to 42FF
		System error (FAL): FAL instruction executed

Note Error clear codes are 1-word (2-byte) data, so the above codes are specified with the low byte first. 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 operand S of CMND(490). For example, to specify battery error 00F7 Hex, specify the error code as F7 Hex followed by 00 Hex, as shown in the following diagram.

Command Block

Destination	Class ID	Attribute ID
node
address		Attribute Value

Service Code Instance ID

The settings for operand S and following words for CMND(490) are shown in the following diagram.

Data set for CMND(490)

Bit

FINS command code

Node address, Service Code

Class ID

Instance ID

Attribute ID, Attribute Value

In this case, error code 00F7 is set from the high to the low byte.

No. of bytes received (response): The number of bytes received from the destination node address (remote node) is returned in hexadecimal.

Destination node address (response): The node address of the CS/CJ- series DeviceNet Unit from which the response was sent is returned in hexa- decimal.

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