Charm Trigger
The Charm Trigger initiates a data transfer when new data is available on the Charm device. Unlike OPC Router 3, which provided the transfer object and trigger separately, both functions are now combined in the Charm Trigger object—meaning the trigger also serves as the data source.
The individual properties are:
| Property | Description |
|---|---|
| Device Type | Type of Charm Reader. The devices “EZ,” “EZ-M,” and “EZ-M 2” are predefined. However, you have the option to add additional device types via an XML file. |
| Message Type | "Receive Message" is set by default. If you switch to "Heartbeat," an internal device in the background takes over the reception of a message. |
| Port | Port on this computer (running the OPC Router) to which the Charm device sends its data. In general, a separate port must be created for each Charm device type. Recommended procedure: All Charm devices of a given type should send to the same port. A single connection is created for this purpose in the OPC Router. In addition to the results, the OPC Router also transmits information about the sending Charm device to the database. The logic for processing the results resides in the database (or another transfer destination). However, if a separate connection is to be created for each Charm device, a separate port must also be available for each device. |
| Available/Used Fields | Select the fields you want to use for your flow from the available fields. Use the arrows to submit your selection or undo it. |
| Trigger transfer error for invalid messages | Enable this to trigger a transfer error for invalid messages. Disable this to ignore invalid messages (e.g., to intercept invalid messages in another connection using the Charm Error Trigger; see that section). |
Confirm your entries by clicking “OK.”
In addition to the message fields you selected from the available fields, further information about the received message is automatically displayed (message information). Under “Message Information,” the complete message, the IP address of the Charm device, the timestamp, and—in the case of multiple consecutive messages—a sequential numbering are displayed.
Message Information
| Property | Description |
|---|---|
| Complete Message | The complete message from the Charm device |
| Client Address | IP address of the Charm device |
| Message Index | If multiple messages are sent simultaneously, the OPC Router numbers the individual messages. |
| Timestamp | Timestamp of the message (UTC) |
Note: The Charm device must be configured with the IP address of the computer running the OPC Router, along with the port number specified here. The Charm device must send its data to this address. The OPC Router then transmits the data in individual records.
Fields of the predefined Charm device types
| Name | EZ | EZ-M | EZ-M2 | Description |
|---|---|---|---|---|
| Answer | X | X | Numerical test result, including unit of measurement where necessary | |
| Assay | X | X | Sample type | |
| ChannelNumber | X | X | X | EZ channel number |
| CommodityName | X | X | Raw material/item | |
| controlLINE | X | X | X | Intensity of the control line |
| CurrentCommoditySelectIndex | X | |||
| CurrentDilutionSelectIndex | X | |||
| CurrentMatrixSelectIndex | X | |||
| CurrentTestSelectIndex | X | |||
| Date | X | X | X | Date of the test |
| DE_Name | X | X | ||
| Dirt | X | X | X | Degree of lens contamination |
| FailCode | X | X | X | Error code for a failed test |
| Flow | X | X | X | Flow value (correct application of milk to the test strip) |
| Interpretation | X | X | X | Interpretation of the test result (positive, negative, etc.) |
| InterpString | X | (Interpretation in newer firmware) | ||
| LotNumber | X | X | Lot number (as entered on the device) | |
| MatrixNumber | X | Matrix number of the test result | ||
| Mode | X | X | X | Mode of the Charm device |
| OperatorID | X | X | Operator ID (as entered on the device) | |
| Ratio | X | X | Ratio of extraction solvent to extraction | |
| Remmisions | X | X | ||
| Result | X | X | X | Test result (positive, negative, invalid) |
| RFID | X | |||
| SampleID | X | X | X | Test ID (as entered on the device) |
| StructVersion | X | X | X | |
| testLINE | X | X | X | Intensity of the test line |
| TestOutputName | X | X | X | |
| TestTemperature | X | X | X | Incubator temperature at the time of the test |
| TestType | X | |||
| Time | X | X | X | Time of the test |
| TipBlue | X | X | Displays the value “Blue” when the test color has been identified | |
| TipGreen | X | X | Displays the value “Green” when the test color has been identified | |
| TipRed | X | X | Displays the value “Red” when the test color has been identified | |
| UnitSN | X | X | X | |
| XLine | X | X | X | Intensity of the X Line |
| YLine | X | X | X | Intensity of the Y line |
| ZLine | X | X | X | Intensity of the Z line |