Sedona Jennic option card FAQs

The following are some frequently asked questions (FAQs) about the Sedona Jennic option card.

1. What can I do with the RS-485 port on the Sedona Jennic option card?
2. How many Jennic-based devices are supported under an option card?
3. Are two Sedona Jennic option cards supported in a JACE, say for two different Jen6lp networks?
1.

What can I do with the RS-485 port on the Sedona Jennic option card?

Currently, nothing. It is “future use” for support of wired Sedona Framework 6LoWPAN devices using an MS/TP link layer. Note this RS-485 port is not available to the NiagaraAX station, although it does reserve a COM port address on the JACE platform.

2.

How many Jennic-based devices are supported under an option card?

The maximum number of devices supported is determined by the JACE’s license, in the device.limit attribute of its jen6lp feature. If more than the specified number of Jen6lp device components are added to the station, they remain in fault until deleted, or until the license is upgraded for more devices.

However, note that the jen6lp feature (for the SedonaJen6lpNetwork) may also limit the total number of proxy points, in the point.limit attribute. This point limit applies across all child devices, and may make a device limit irrelevant. For example, consider if a JACE’s license has a jen6lp (feature) device limit of 25 and a point limit of 125. If 25 devices were modeled in the station with 5 proxy points each, both limits would be reached with good results. However, if each device was modeled in the station with 8 proxy points, any proxy points added after the 125 point limit would remain in fault.

3.

Are two Sedona Jennic option cards supported in a JACE, say for two different Jen6lp networks?

No—currently only one Sedona Jennic option card is supported; therefore its station may have only one SedonaJen6lpNetwork. However, if licensed for Ethernet-based Sedona Framework devices (feature: sedonanet), its station can use an additional SedonaNetwork to integrate these type of devices. Note this network has separate license limits for the maximum number of devices and proxy points.