System Device Mappings

It is possible that multiple systems may share the same device instances (e.g. connected to the same device on the same communication port) and therefore share the same device level settings.

For example, we could have an IRMS connected to 2 different inlets. They we could set this up as follows:

In this situation, we would not usually want to communicate to both inlets at the same time – so this works (IonOS can only connect to a single System at any time).

However, we would want our IRMS settings to be the same when accessing both inlets (e.g. if I have calibrated by IRMS to detect a species, then I want that calibration to apply to both systems).

This means after using my IRMS on a inlet for a while, I can now change systems (to another inlet) and know that the IRMS will be ready (mostly). However, there may be some IRMS settings that I would want to change per system. E.g. The Source Inlet Valve position would need to be changed for an EA inlet as opposed to a GC inlet. This setup would look like:

IonOS supports all the above setup options, but the latter is the preferred option.

Another example, is for Autosampler settings. An Autosampler may operate with a different tray configuration when used as part of different systems / inlets. In this case, the selected layout can be set within the Device Overrides section of a System Configuration.