Rockwell Automation 440R MSR312 Configurable Monitoring Safety Relay w/DeviceNet Communications User Manual
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Configurable Monitoring Safety Relay with DeviceNet™ Communications
Chapter 8: DeviceNet Classes and Objects
MSR312-UM001B-EN-P
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Class Code 0x001D: Discrete Input Group Object
This object maintains any attributes that apply to all instances of Discrete Input Points so they can be addressed as a
group.
The following common services will be implemented for the Parameters Object.
Class Code 0x002B: Acknowledge Handler Object
No class attributes will be supported for the Acknowledge Handler Object.
A single instance (instance 1) of the Acknowledge Handler Object will be supported. The following instance attributes
will be supported.
The following common services will be implemented for the Acknowledge Handler Object.
Attribute ID Access Rule
Name
Data Type
Value
5
Get
Status
BOOL
0 = OK, 1 = Interrupted
103
Get
Group State
BOOL
0 = Ready, 1 = Active
104
Get
Group Reset State
USINT
0, “Groups 1, 2 and 3: Auto,”
1, “Group 3: Auto, Groups 1 and 2: Manual,”
2, “Groups 1 and 2: Auto, Group 3: Manual,”
3. “Groups 1, 2 and 3: Manual.”
105
Get
Group EDM Status
BOOL
0 = Open, 1 = Closed
Service Code
Implemented for:
Service Name
Class Instance
0x0E
Yes Yes Get_Attribute_Single
0x10 No Yes Set_Attribute_Single
Attribute ID Access Rule
Name
Data Type
Value
1 Get/Set
Acknowledge
Timer
UINT
ms
2 Get
Retry
Limit
USINT
1
3
Get
COS Producing Connection
Instance
UINT 4
Service Code
Implemented for:
Service Name
Class Instance
0x0E No
Yes Get_Attribute_Single
0x10 No Yes Set_Attribute_Single