D2000 GateWay Client may be configured also for direct transfer of values of selected objects from the source D2000 System (shows data through the D2000 GateWay Server) to the destination one without the need to configure objects of "Remote tag" type.
...
The value transfer is executed only on the basis of verification of object match between D2000 Systems. To transfer the values, select the particular objects or group of objects filtered by mask and then enter them to the start parameters of the GateWay Client process.
The destination system tries to verify whether the required objects exist in the source system and if so, it ensures transferring the value of these objects. If the source system does not contain the a particular object, it will have the an invalid value in the destination system.
If the list of objects is changed (any object is added or deleted) while running the GateWay Client in the destination system, which corresponds with mask, the proper action is executed towards the source system (logging on / off of object).
...
The structured variables can be transferred only as a whole.
There is not supported the The feature Destination column for I/O tags is not supported. A user must select the values of the given destination structure that are to be transferred.
...
The transparent gateway is a temporary solution providing that:
- there are done the changes or modifications of functional and used systemproduction systems, which are first tested on a parallel system,
- there is executed the test of a new hardware when upgrading the existing system,
- other testing or debugging purposes.
...
You should realize that the transparent gateway assigns the values to objects those administrative processes in DODM systemwhich are children of some D2000 processes. Therefore, these processes must be stopped in the destination D2000 System. It concerns These are usually the communication processes and calculation processes.
The user cannot change the value on the destination D2000 System (commanding controlling values). As the administrative parent communication process does not run, the setting of value ends with an error.
| Kotva | ||||
|---|---|---|---|---|
|
...
/ROV parameter is followed by a name (or more names separated by a comma) of object or mask for more objects. To transfer the object values together with the child, add the '+' (plus) character at the end.
...
| /ROVSELF.KOM+ | Ensures the value transfer of the SELF.KOM process together with its children (lines, stations, I/O tags). |
| /ROVM.* | It is used for value transfer of the I/O tag which name starts according to the ordinary naming 'M.'. |
| /ROVM.OBJ1,M.OBJ2 | Value transfer of objects M.OBJ1 and M.OBJ2. |
...
Transparent gateway supports pairing not only by object names but also by UID objects. This feature is enabled by the start parameter /UID, which must be used when starting both the GateWay Client and GateWay Server processes.
This feature can be used to implement the functionality of a transparent gateway regardless of changes in the names of the objects (provided that they have the same UID), i.e. objects can be renamed.
...
If the transparent gateway does not find the desired object on the side of the gateway server, it invalidates the value of the object on the side of the gateway client. This feature can be disabled by the /NOINV start parameter.
...