Data Sheet for Product

Page 2 of 6 Siemens Industry, Inc.
Modbus 250 Driver on the PXC Series Platform
Functionality
● With Firmware 3.5 and later, one physical FLN (1) on the BACnet/IP PXC-24 and
PXC-16 hardware can be used for connecting and addressing either Modbus RTU
or P1 devices on RS-485 FLNs.
● Up to 247 device addresses per FLN.
● TX-I/O Modules.
● Maximum of 8,000 APOGEE points per driver.
● Maximum of 250 Modbus points per driver.
Figure 2: System Architecture—Modbus 250 Driver in RTU Master Mode (Firmware 3.x).
Notes on System Architecture
The Modbus 250 Driver in RTU Master Mode (Figure 2), with Firmware 3. x , supports
the following:
● BACnet MS/TP or BACnet/IP ALN on Firmware 3.
x .
If the driver is on a BACnet MS/TP network, you can use a standard field panel
with Firmware Revision 3.1 or later as a router to connect to an Insight
workstation. Do not use an Integration Driver as the router.