GE PACSystems RX3i

Appendix A. PROFINET IO Performance Examples
152 PACSystems* RX3i & RSTi-EP PROFINET IO-Controller User Manual GFK-2571N
A-1 Systems with RX3i PNS
A-1.1 RX3i System Performance Summary
System Configuration
Total # of PROFINET
I/O Devices/
Modules
20
Total Amount
PROFINET I/0
Discrete pts./
Analog Chan.
RX3i CPU
Sweep Time
(ms)
Average
(Max)
16-pt. Discrete
I/O Loopback
Time (ms)
Average
(Min, Max)
1 ms PROFINET Update Rate
A.2.1 - Multi-Device w/MRP
8/33 x 12-slot racks
176/16
4.1 (6.7)
12 (7, 20)
16 ms PROFINET Update Rate
B.1 - Multi-Device
20/59 x 12-slot racks
656/64
6.0 (7.6)
28 (11, 48)
A-1.2 RX3i System Descriptions
A.1 - Multi-Device with MRP (3i PNS)
This system contained an IC695CPU320, IC695ETM001, and an IC695PNC001 in the main rack. The PNC001
was connected in a Media Redundancy Protocol (MRP) network of eight RX3i PNS modules (IC695PNS001),
each configured for a 1 ms PROFINET update rate. Each PNS contained between one and nine discrete input,
discrete output, analog input, or analog output modules. The I/O Loopback measurement was taken using a
32-point output module (IC693MDL740) owned by one RX3i PNS that was then tied to the 32-point input
module (IC694MDL660) in the same device. The input module (IC693MDL660) was set to have a 0.5 ms input
filter time.
B.1 - Multi-Device
This system contained an IC695CPU320, IC695ETM001, and an IC695PNC001 in the main rack. The PNC001
was connected in a network bus configuration to 20 RX3i PNS modules (IC695PNS001), each configured for a
16 ms PROFINET update rate. Each PNS contained at least two discrete input, discrete output, analog input, or
analog output modules. The I/O Loopback measurement was taken using a 32-point output module
(IC694MDL754) owned by one RX3i PNS, that was then tied to the 32-point input module (IC694MDL660)
owned by a different RX3i PNS. The input module (IC694MDL660) was set to have a 0.5 ms input filter time.
20
Number of modules includes I/O modules only; does not include head-ends or power-supplies.