2711P-RN3 DH-485 communication module
2711P-RN8 DH+ communication module
2711P-RN15C ControlNet communication module
- 2711P-RN22C RS-232 isolated communication module
However, with the release of the new PanelView Plus 6 400 and 600, we lose the option of adding ANY communication modules (even the mounting holes and nuts for the comm modules have been removed.) This is not the case with the larger PVPlus 6 products – on those systems we can still use the add on 2711P-RN6 to get DH-485. But what if you need to replace a 550 or 600 legacy DH-485 PanelView?
Its still possible, but not nearly as clean and neat a solution. The PanelView Plus 6 400 and 600 still support the DH-485 protocol on it's built-in RS-232 DB9 serial port, so what also is needed is an RS-232 to RS485 converter. One option is to use the din-rail mount 1761-NET-AIC. This 24vdc powered device is a pure RS-232 to RS485 converter, one I've used not only for DH-485 applications, but also for ASCII, Modbus, and PC applications as well.
Besides the 24vdc power, you'll also need to know which cables to purchase. The 1761-NET-AIC has three ports: the 6 position terminal block is the RS-485 port, and the 8 pin mini din along with the DB9 are RS-232. If you are connecting to a dasiy chain DH-485 network then no cable is needed on that side – just wire the daisy chain into the TB and you're good to go. However, if you need to connect to an RJ-45 DH-485 connector, like that found on the front of many SLC-500's, well you'll want a 6-pin Phoenix to RJ45 cable, either the 1761-CBL-AS03 (3 m / 10 ft) or the 1761-CBL-AS09 (9 m / 30 ft.)
With the hardware sorted out you just need to know which driver to use in RSLinx Enterprise. For this application you would chose the Serial DH-485 driver (same driver you would use for the 2711P-RN3) accepting the default port, but choosing the correct node address for the PVPlus, along with the corrent baud rate for the network you're connecting to.
Hopefully you'll find these details on how to use the new PanelView Plus 6 400 and 600 on DH-485 helpful. If you've implement the above, or plan to, we'd like to hear about your experience – just use the “leave a reply” form at the bottom of this page.
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