PCD1 / E-Line Why the RS-485 S-Bus communication [...] the some of the S-Bus telegrams transferred from the PCD S-Bus master to the S-Bus slaves over RS485 are malformed, and the S-Bus slave does reject the request from the master. This could lead to the situation that for example the PCD S-Bus master don’t receive actual values from E-Line RIO’s or that the program download of a PCD program from the PC to a Slave PCD which is located behind a
complexity of the tools, some days of training are required before the first project. Quite a few scada system manufacturers have got an S-Bus driver available. Any scada system containing an OPC client can be [...] links (Serial-S-Bus), Profibus (Profi-S-Bus) or Ethernet TCP/IP Networks (Ether-S-Bus) and allows to display predefined and user-defined web pages. Web.Builder software to convert de webpages [...] General Our solution Products: Classic/PG5 Products: xx7/Step7 Restrictions The SBC-S-Web concept allows to use a
controllers with S-Bus and Modbus Programmable room controller, 2 interfaces RS-485 for S-Bus or Modbus, Sylk Bus 230 VAC power supply, large housing, RTC
controllers with S-Bus and Modbus Configurable room controller with BACnet MS/TP interface and commissioning tool [...] 7.LRxxx Combinable room control system with serial S-Bus interface for fan-coil and air quality control applications PCD7.L60x-1 Combinable room control system with Lon [...] room conctrol units PCD7.L64x Compact room controller with serial S-Bus interface Saia
When values are read from a PCD7.L1xx or a PCD7.L3xx module, the preparation of the S-Bus response telegram needs about 10 ms. This time is longer than the same task does take on a PCDx.Mxxx CPU. The time used for writing a value to a PCD7.Lxxx module is about equal to the time that is used by a PCDx.Mxxx CPU (because only an acknowledgement needs to be replied).
Since the Profi-S-Bus protocol is multi-master capable, the question about the amount of possible masters/slaves per station comes up.
The PCD1.Room is able to handle up to 10 S-Bus and 10 Modbus slaves.
The first generation of PCDs with integrated S-Web server did not support http-direct (e.g. the PCD1.M125, PCD1.M135, PCD2.M150, PCD2.M170, PCD2.M480) . Therefore the access of the S-Web Server must be realized using the free software "S-WebConnect" which is to be installed on a PC (accessing the PCD using e.g. Ether-S-Bus). Alternatively, an MB Panel can also access the S-Web Server (e.g. using Ether-S-Bus). However, it is important to know that only one S-Bus client can access the S-Web Server over Ether-S-Bus at the same time!
On the PG5 device configuratior it’s possible to activate/deactivate the RS485/RS422 Bus termination of the port 3 (D-Sub #2 connector; RS485/RS422) of the PCD3.M5340.
