Emerson PACSystems Versamax - 4.3 Programmer Configuration of the Genius NIU and I;O Station

PACSystems VersaMax Genius Network Interface User Manual Section 3
GFK-1535D Jan 2023
Operation 57
3.5.2 GNIU Sweep Times for Enhanced
Diagnostics Mode
The Genius NIU’s sweep time refers to the amount of time it takes for the
GNIU to execute one iteration of its background loop where it scans I/O
and executes a small portion of its background diagnostics. When
Enhanced Diagnostics Mode is enabled, the GNIU’s sweep time depends
on the Genius bus scan time and the number of analog input modules
configured in the station. The table below lists the maximum GNIU’s
sweep times in mS for each configuration and several different Genius
bus scan times.
Number of Analog Modules IC200ALG265 and IC200ALG266
Configured in the Station
1
2
3
4
Number of
additional
I/O Bytes
Transferred
on the
Genius Bus
Genius
Bus
Scan Time
Max GNIU
Sweep
Time
Genius
Bus
Scan
Time
Max GNIU
Sweep
Time
Genius
Bus
Scan Time
Max GNIU
Sweep
Time
Genius
Bus
Scan Time
Max GNIU
Sweep
Time
Genius Baud rate = 153.6K std (Times for 153.6K ext are similar)
0
5
24.8
7
40
10
62
12
90
8
6
19.2
8
30
11
47
13
69
16
7
16.4
9
29
12
39.6
14
50
32
8
14.4
10
23.6
13
31.2
15
40
40
9
14.4
11
18.8
14
30.8
16
39
48
9
13.2
12
18.8
14
24.4
16
39
56
10
13.2
13
18.8
14
24.4
16
30
64
10
13.2
13
18.8
15
24.4
17
30
72
10
13.2
14
18.8
15
24.4
18
30
80
11
13.2
14
18.8
16
24.4
19
30
88
12
10.8
14
18.8
17
24.4
19
30
96
12
10.8
15
13.8
17
24.4
20
29
104
13
10.8
16
13.6
18
24.4
20
29
112
13
10.8
16
13.6
18
16.8
21
28.8
120
14
10.8
16
13.6
19
16.8
21
19.6
128
14
10.8
17
13.6
20
16.8
22
19.6
…