E6581581
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4.4. Connection Manager Object (06 hex)
Class code 0x06. Use this object for connection and connectionless communications, including
establishing connections across multiple subnets.
Class Attributes available
Instance Attribute ID Access Name Data type Value
1 Get Revision UINT 1
2 Get Max Instances UINT 1
3 Get Number of Instances UINT 1
4 Get Optional Attribute List STRUCT
of
08 00 01 00 02 00 03 00 04 00 05 00 06
00 07 00 08 00
6 Get Max ID of class attributes UINT
7
0
7 Get Max ID of instance attribute UINT
8
Instance 1 Attribute available
Instance Attribute ID Access Name Data type Details
1 Get Open Requests UINT Number of Forward Open service
requests received.
2 Get Open Format Rejects UINT Number of Forward Open service
requests which were rejected due to
bad format.
3 Get Open Resources
Rejects
UINT Number of Forward Open service
requests which were rejected due to
lack of resources.
4 Get Open Other Rejects UINT Number of Forward Open service
requests which were rejected for
reasons other than bad format or
lack of resources.
5 Get Close Requests UINT Number of Forward Close service
requests received.
6 Get Close Format Requests UINT Number of Forward Close service
requests which were rejected due to
bad format.
7 Get Close Other Requests UINT Number of Forward Close service
requests which were rejected for
reasons other than bad format.
1
8 Get Connection Timeouts UINT Total number of connection
timeouts that have occurred in
connections controlled by this
Connection Manager
Services
Supported
Service
Code
Service Name
Class Instance
Description of Service
01 hex Get_Attribute_All
Yes Yes
Read all attributes
0E hex Get_Attribute_Single
Yes N/A
Read one attribute
10 hex Set_Attribute_Single
N/A Yes
Write one attribute
4E hex Forward_Close
N/A Yes
Closes a connection
54 hex Forward_Open
N/A Yes
Opens a connection, maximum data size is 511
bytes
5B hex Large_Forward_Open
N/A Yes
Opens a connection, maximum data size is
65535 bytes
*The timeout is not detected under non-connection communication.