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
10 CIP Message Communications
10-41
NX-series EtherNet/IP Unit User's Manual (W627)
10-5 CIP Object Services
10
10-5-4 Ethernet Link Object (Class ID: F6 hex)