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Omron CJ1W-EIP21 - Page 244

Omron CJ1W-EIP21
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8 Message Communications
8-38
CJ-series EtherNet/IP Units Operation Manual for NJ-series CPU Unit (W495)
(2) Software Switch Details
Service Codes
Specify the service to execute with the service code.
Request Paths (IOIs) to Specify Objects
When you specify an object, specify the request path (IOI) for each service code as given below.
Bit Name Description
0 Auto-negotiate FALSE: Auto-negotiation is disabled (communications setup is always set to 10 Mbps).
TRUE: Auto-negotiation is enabled (communications setup is automatically set to 100
or 10 Mbps).
1 ForcedDuplex Mode FALSE: Half duplex
TRUE: Full duplex
* When auto-negotiation is enabled (bit 0 is TRUE), this should always be FALSE.
2 to 16 Reserved Always FALSE
Service
code
Parameter name Description
Supported services
Classes Instances
0E hex Get_Attribute_Single Reads the value of the specified attribute. Supported. Supported.
10 hex Set_Attribute_Single Writes a value to the specified attribute. Supported. Supported.
4C hex Get_and_Clear Specify Attribute4 or Attribute5 to reset the value of the attribute to 0. Not sup-
ported.
Supported.
Service code Class ID Instance ID Attribute ID
0E hex Get_Attribute_Single F6 hex Specifying a service for a class: 00 hex
Specifying a service for an instance:
Always 01 hex
Not required.
10 hex Set_Attribute_Single Reading a class attribute: 01 or 02
hex
Reading and writing an instance
attribute: 01 to 06 hex
4C hex Get_and_Clear Specify an attribute to reset its value
to 0: 01 to 05 hex

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