Chapter 1. Introduction
GFK-2571N
May 2018
7
System Maximum Limits
PROFINET Controllers per RX3i CPU
Four PNC001 maximum. Must be located in main CPU rack. Cannot be
located in a remote node.
CPE330 supports one embedded PROFINET Controller plus up to four
PNC001.
CPE400 & CPE100/CPE115 support one embedded PROFINET Controller.
Since these are standalone CPUs they do not support any PNC001 in their
hardware configuration.
IO-Devices per IO-Controller
128 max per PNC001 at maximum update interval.
32 max (simplex) or 20 max (Hot Standby Redundancy) per embedded
PROFINET Controller at maximum update interval.
8 max per RSTi-EP CPE100/CPE115 embedded PROFINET Controller.
For limits at shorter update intervals, refer to
Max MRP Clients when configured as MRP
Manager
PNC001
–
63
Embedded PROFINET Controller - 31
Embedded PROFINET Controller CPE100/CPE115
2
- 8
IO-Devices per Network
Maximum of 255 simplex or 255 redundant I/O Devices per network,
spread across a maximum of 8 I/O Controllers.
The actual total number of devices supported per network depends on the
topology. For details, refer to
Maximum Number of Nodes per Network
IO-Devices per RX3i CPU
Maximum of 255 simplex or 255 redundant I/O Devices per RX3i CPU,
spread across up to four PROFINET Controllers.
3
IO-Devices per RSTi-EP CPU
Maximum of 8 simplex I/O Devices for CPE100/CPE115.
IO-Controllers per Network
Eight maximum
Input and output memory per IO-Controller
Maximum of 128 Kbytes combined input and output memory
Note: RSTi-EP CPE100/CPE115 supports maximum 8 IO Devices so the
combined input and output memory is equivalent to maximum input
/output memory supported by 8 devices.
Number of PROFINET Slots per device
256
Number of PROFINET Subslots per slot
256
Number of PROFINET Submodules per RX3i
CPU
2048
Programmer Limits
Number of IO-Controllers
128 (32 RX3i CPU targets × 4 IO-Controllers per RX3i CPU)
Number of IO-Devices
2048 (128 per network × 16 PROFINET networks)
Total number of devices
2176 (does not include backplanes, power supplies, or I/O modules)
For product standards, general operating specifications, and installation requirements, refer to the
PACSystems RX3i System Manual,
GFK-2314.
2
Effective with firmware v9.30, CPE100/CPE115 supports MRP.
3
In the case of CPE330, with embedded PROFINET activated, it is possible to have five PROFINET Controllers. However, in
the rare case of having all 5 PNCs configured on the same LAN, and then invoking redundancy, each CPU is again
restricted to a limit of 4 PNCs (in order to satisfy the overall limit of 8 PNCs per LAN).
