Rockwell Automation 440R MSR312 Configurable Monitoring Safety Relay w/DeviceNet Communications User Manual
Page 52

Configurable Monitoring Safety Relay with DeviceNet™ Communications
Chapter 8: DeviceNet Classes and Objects
52
MSR312-UM001B-EN-P
Instance 171 (20 Point Input w/Single Status Bit)
Note: Response time is assembly dependant, and will vary depending upon the number of input modules attached to the
system. The response time will be longest with ten input modules attached.
Class Code 0x0005: Connection Object
No class attributes will be supported for the Connection Object. Five instances of the Connection Object will be supported.
Instance 1 will be the explicit message connection, instance 2 will be the polled IO connection, and instance 4 will be the COS/
Cyclic IO connection. Instance 1 is the Predefined Group 2 Connection Set Explicit Message Connection. The following
instance 1 attributes will be supported:
Byte
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0
Input 4b State Input 4a State Input 3b State Input 3a State Input 2b State Input 2a State Input 1b State Input 1a State
1
Input 8b State Input 8a State Input 7b State Input 7a State Input 6b State Input 6a State Input 5b State Input 5a State
2
Device Fault
Reserved
Reserved
Reserved
Input 10b
State
Input 10a
State
Input 9b State Input 9a State
Input Modules
Response time
One
16.2mS
Ten
56.4mS
Attribute ID Access Rule
Name
Data Type
Value
1
Get
State
USINT
0 = non-existent 1 = configuring 3 =
established 4 = timed out
2
Get
Instance Type
USINT
0 = Explicit Message
3
Get
Transport Class Trigger
BYTE
0x83 — Server, Transport Class 3
4
Get
Produced Connection ID
UINT 10xxxxxx011
xxxxxx = node
address
5
Get
Consumed Connection ID
UINT 10xxxxxx100
xxxxxx = node
address
6
Get
Initial Comm Characteristics
BYTE
0x22
7
Get
Produced Connection Size
UINT
0x61
8
Get
Consumed Connection Size
UINT
0x61
9
Get/Set
Expected Packet Rate
UINT
In milliseconds
12 (OC
hex
)
Get
Watchdog Action
USINT
01 = auto delete 03 = deferred
delete
13 (OD
hex
)
Get
Produced Connection Path Length
UINT
0
14 (OE
hex
)
Get
Produced Connection Path
EPATH
Empty
15 (OF
hex
)
Get
Consumed Connection Path Length UINT
0
16 (10
hex
)
Get
Consumed Connection Path
EPATH
Empty