Bit Name Description
7 to 31 Reserved Always FALSE
2. Control Bit Details
Bit Name Description
0 Auto-negotiate FALSE: Auto-negotiation is disabled.
TRUE: Auto-negotiation is enabled.
1 ForcedDuplex Mode
FALSE: Half duplex TRUE: Full duplex
*1
2 to 16 Reserved Always FALSE
*1. When auto-negotiation is enabled (bit 0 is TRUE), this should always be FALSE.
Request Paths (IOIs) to Specify Objects
When you specify an object, specify the request path (IOI) for each service code as given below.
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 in-
stance: Always 01 hex
• Reading a class attribute: 01
to 03 hex
• Reading and writing a in-
stance attribute: 01 to 06 hex,
0C hex, and 0D hex
10 hex Set_Attribute_Single
4C hex Get_and_Clear Specify an attribute to clear the
value to 0: 04 hex, 05 hex, 0C
hex, 0D hex
8-5-6
Controller Object (Class ID: C4 hex)
This object is used to get the status of the Controller or to change the operating mode of the Control-
ler
.
Service Codes
Specify the service to execute with the service code.
Service
code
Parameter name Description
Supported service
range
Class Instance
0E hex Get_Attribute_Single Reads the value of the specified attribute.
Support-
ed
Not sup-
ported
10 hex Set_Attribute_Single Writes a value to the specified attribute.
Support-
ed
Not sup-
ported
51 hex Reset_Sys-
tem_Alarm_All
Clears all errors of CPU Unit.
Support-
ed
Not sup-
ported
Class ID
Specify C4 hex.
8 CIP Message Communications
8-81
NJ/NX-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
8-5 CIP Object Services
8
8-5-6 Controller Object (Class ID: C4 hex)
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