OPTO 22 BD-DEVNET, Руководство пользователя

Страница: 25 / 28

DEVICENET INFORMATION
BD-DEVNET User’s Guide 3-11
Discrete Output (DOP) Object Class Code: 09H
The Discrete Output Point (DOP) Object models discrete outputs in a product. You can use
this object in applications as simple as an indicator lamp or as complex as a discrete I/O
control module. There is a separate instance for each discrete output available on the
device.
Table 3-24: Class Attributes
Attr Access Name Ty p e Value
1 Get Revision UINT 1
2 Get Max Object Instance UINT 4
6 Get Max Class ID UINT 7
7 Get Max Instance Attr. UINT 16
Table 3-25: DIP Object, Instance 1..n Attributes
Attr Access Name Ty p e Value
3 Get Value BOOL *
4 Get Status BOOL *
5 Get Fault State BOOL **
6 Get Fault Value BOOL **
7 Get Idle Sta BOOL ***
8 Get Idle Value BOOL ***
*Input Value determines the overall condition of inputs. The status information will always be 0.
State x Interpretation
0 Output is OFF
1 Output is ON
0 Output faulted
**The Fault Value and Fault State determine the unit’s reaction to an output fault condition.
State Value Interpretation
0 0 Turn output OFF if faulted
0 1 Turn output ON if faulted
1 x Leave output unchanged if faulted
***The Idle Value and Idle State determine the unit’s reaction to an output idle condition.
State Value Interpretation
0 0 Turn output OFF if idle
0 1 Turn output ON if idle
1 x Leave output unchanged if idle
Table 3-26: Common Services
Service Implemented for: Service
Code Class Instance Name
0 E Yes Yes Get_Attribute_Single
10 N o Yes Set_Attribute_Single