Emerson PACSystems RX3i User Manual page 225

PACSystems™ RX3i and RSTi-EP CPU Reference Manual
GFK-2222AK
PROFINET Controller (PNC001) and PROFINET I/O Sweep Impact
The PLC CPU sweep impact for a PROFINET IO network is a function of the number of
PNCs, the number of PROFINET devices, and the number of each PROFINET device's IO
modules. The table below shows the measured sweep impact of the RX3i PROFINET
Controller, supported VersaMax PROFINET devices, and I/O modules.
Sweep Impact Item
RX3i PROFINET
Controller (PNC)
RX3i Devices
PROFINET Scanner
(PNS) IC695PNS001
ALG442 Mixed
Analog
ALG220 Analog Input
ALG390 Analog
Output
MDL645 Discrete
Input
MDL740 Discrete
Output
VersaMax Devices
PROFINET Scanner
(PNS), IC200PNS001
Discrete Input
Module (8/16/32 pt.)
Discrete Output
Module (8/16/32 pt.)
Analog Input Module
(15 channel)
Analog Output
Module (12 channel)
CMM020
(64AI/64AQ)
To calculate the total expected PLC sweep impact for a PROFINET I/O network, add the
individual sweep impact times for each PROFINET Controller, PROFINET Device, and
PROFINET Device I/O module, using the times provided above.
For example, for a PROFINET I/O network that consists of one PNC and one VersaMax
PROFINET Scanner, which has both an 8-point input and an 8-point output module:
Expected PLC Sweep Impact
Serial I/O, SNP & RTU Protocols
CPU315/CPU320 CPE302/CPE305/CPE310
(µs)
50
46
54
27
24
23
22
40
23
18
59
21
204
= 50 (PNC) + 40 (PNS) + 23 (8pt. Input) + 18 (8pt. Output)
=131 µs.
CPE330
w/PNC001
(µs)
(µs)
48 43
73 42
76 38
45 29
33 12
36 18
31 9
80 38
40 23
45 24
96 67
45 27
263 188
Appendix A
October 2019
CPE330 CPE400/CPL410
w/Embedded w/Embedded
PNC PNC
(µs) (µs)
16 12
10 24
25 20
14 10
13 10
15 10
14 9
15 24
10 10
13 12
10 11
12 14
18 18
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