Data Sheet for Product

Page 2 of 7 Siemens Industry, Inc.
Modbus 500 Driver on the PXC Series Platform
Functionality
Up to two physical FLNs (FLN 1 through FLN 2) on PXC-36 hardware, depending
on the ALN chosen, which can be used for connecting and addressing either
Modbus RTU or P1 devices on RS-485 FLNs.
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 500 Modbus points per driver.
Figure 2: System ArchitectureModbus 500 Driver in RTU Master Mode (Firmware 3.x).