GE PACSystems RX7i Reference Manual

Appendix A. Performance Data
GFK-2222AD April 2018 301
A-3.10 Example of Predicted Sweep Time Calculation
The sweep time estimate in this example does not include a time for logic execution. The calculated
sweep is for normal sweep time with point faults disabled, and the programmer is not attached. The
times used in the calculation are extracted from the following tables:
Base Sweep Times
RX7i Module Sweep Impact Times or RX3i I/O Module Sweep Impact Times
Sweep Impact Time of Genius I/O and GBCs.
A sample calculation of predicted sweep times is provided after the example.
Sample RX7i System Configuration
PS
CPE010
BTM
32PT
Input
32PT
Input
32PT
Output
32PT
Output
8CHN
Analog
Input
4CHN
Analog
Output
ETM
0
1
2
3
4
5
6
7
8
9
MAIN RACK
Sweep Calculations (in µS)
Predicted Sweep
=
Base Sweep
+
I/O Scan Impact
Base Sweep Time
= 465
I/O Scan Impact …
Number of discrete input type 2 modules—main rack
Sweep impact time per discrete I/O module
2
x 37.9
= 75.8
Number of discrete output type 2 modules—main rack
Sweep impact time per discrete I/O module
2
x 80.4
= 80.4
Number of analog input modules—main rack
Sweep impact time per analog base and output module
1
x 49.3
= 49.3
Number of analog output modules—main rack
Sweep impact time per analog base and output module
1
x 49.7
= 49.7
Ethernet Module
1 x 55.0
= 55.0
Predicted Sweep Time
= 775.2

GE PACSystems RX7i Specifications

General

Brand	GE
Model	PACSystems RX7i
Category	Controller
Language	English