Chapter 9 Ethernet  Specification and Operation 
 
9-71 
Bit (s)  Name  Description 
mode. 
8-15: Reserved 
8  Minor Recoverable Fault 
0: No minor recoverable fault detected 
1: Minor recoverable fault detected 
9  Minor Unrecoverable Fault 
0: No minor unrecoverable fault detected 
1: Minor unrecoverable fault detected 
10  Major Recoverable Fault 
0: No major recoverable fault detected 
1: Major recoverable fault detected 
11  Major Unrecoverable Fault 
0: No major unrecoverable fault detected 
1: Major unrecoverable fault detected 
 
9.8.4 Message Router Object (Class ID: 02 Hex) 
This object provides a messaging connection point through which a client may address a service to any object class or 
instance residing in the physical device. 
  Service Code 
Service 
Code 
Service Name 
Support 
Description 
Class Attribute  Instance Attribute 
H’0E  Get_Attribute_Single  V  V  Read a single attribute 
  Class 
  Class ID: H’02 
  Instance 
  H’00: Class Attribute 
  H’01: Instance Attribute 
  When Instance = 0, the Class Attributes are listed below.   
Class 
Attribute 
Name 
Access 
Rule 
Data Type  Values  Description 
H’01  Revision  Get  UINT  H’01  Revision of this object 
 
  When Instance = 0, the Instance Attributes are listed below.