Why are LED, F-Key and Buzzer variables not supported in Topology Bus Terminals?

FAQ #100361

Even it seems possible to configure Fkeys for up to 31 terminals in Menu Structure of the HMI Editor, it isn't supported!


FKeys (PCD7.D79x, PCD7.D231, PCD7.D232), LEDs (PCD7.D232), Buzzer (PCD7.D23x) and the popup of the alarm buffer (all displays) are not supported in RS 485 Bus Terminals Topology!

Because the RS485 Bus Terminal Topology does use a specific protocol which does not support special telegrams such as the one used for accessing the LEDs or for evaluating the F-Keys, these features are not supported on RS485 networks. In case the LEDs, the F-Keys or the buzzer is required, please connect the display with RS232 to the PCD. 



PCD7 / D23x

PCD7 / D7xx

Local FAQ Deutschland / HMI Editor

Last update: 01.06.2015 08:09

First release: 12.05.2005 12:20

Views: 19242

The requested software / document is no longer marketed by Saia-Burgess Controls AG and without technical support. It is an older software version which can be operated only on certain now no longer commercially available products.