A Caller ID is a unique identifier which identifies a remote I/O device when it dials back to the I/O server. The caller ID can be any combination of alpha-numeric characters and/or the character '_' (underscore).
This ID will only be used if the I/O device initiates the call to the I/O server. If the modem initiates the call, you need to set the caller ID on the modem.
Note: If you are multi-dropping off a single modem, use your I/O devices to issue the caller ID, not the modem. This is because using the modem to issue the ID will send the same ID no matter which I/O device the call is relevant to, which makes it difficult to identify the I/O device that triggered the call.
By using the I/O device to issue the ID, the I/O server will receive a unique caller ID for each I/O device. However, not every I/O device is capable of issuing caller IDs. If you are multi-dropping, use I/O devices that can issue caller IDs.
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Option |
Description |
|---|---|
|
[Event Commands] On connect |
Cicode to be executed once the modem is connected and the I/O Device has come online (that is, before any read or write requests are processed). |
|
[Event Commands] On disconnect |
Cicode to be executed before the connection to the I/O Device is terminated (and after read and write requests are processed). |
See Also
Published June 2018