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I am studying a PLC program from another facility. It uses an SSV instruction and a GSV. Data in SSV, GSV as follows.
-----------SSV---------------------------
| Set System Value:
| Class Name: WALLCLOCKTIME
| Instance Name:
| Attribute Name: DateTime
| Source: MES_WALLCLOCKTIME_NEWVALUE[0]
------------------------------------------
----------GSV----------------
| Class Name: WALLCLOCKTIME
| Instance Name:
| Attribute Name: DateTime
| Dest: PLCSystemDateTime[0]
-----------------------------
The only one of these names that is a tagname is the destination and source. What are these for??
I am studying a PLC program from another facility. It uses an SSV instruction and a GSV. Data in SSV, GSV as follows.
-----------SSV---------------------------
| Set System Value:
| Class Name: WALLCLOCKTIME
| Instance Name:
| Attribute Name: DateTime
| Source: MES_WALLCLOCKTIME_NEWVALUE[0]
------------------------------------------
----------GSV----------------
| Class Name: WALLCLOCKTIME
| Instance Name:
| Attribute Name: DateTime
| Dest: PLCSystemDateTime[0]
-----------------------------
The only one of these names that is a tagname is the destination and source. What are these for??
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