Spectrum Controls 1756sc-CTR8 - Manual (Page 66)

56
ControlLogix ™ Counter Module
A c c u r a c y A c c u r a c y A c c u r a c y A c c u r a c y A c c u r a c y
Frequency Mode 1Hz Accuracy 65kHz Accuracy
max typ max
Instant* +/-0.00Hz +/-354Hz +/-354Hz
Average +/-0.5Hz +/-1Hz +/-2Hz
Average Mode Frequency Error
0
0.5
1
1.5
2
2.5
Fr
eq
300
0
70
00
11
00
0
15
00
0
19
00
0
23
00
0
270
00
31
00
0
350
00
39
00
0
430
00
47
00
0
51
00
0
55
00
0
59
00
0
630
00
Freq(Hz)
E
rror
(
H
z
)
0.000%
0.010%
0.020%
0.030%
0.040%
0.050%
0.060%
Er
ro
r(
%
)
Error(Hz)
Error(%)
Instantaneous Mode Frequency Error
0.000
50.000
100.000
150.000
200.000
250.000
300.000
350.000
400.000
Fr
eq
20
00
50
00
80
00
11
000
14
000
17
00
0
20
00
0
230
00
26
00
0
290
00
32
000
350
00
38
00
0
41
000
44
00
0
47
00
0
50
000
530
00
56
00
0
59
000
62
00
0
Frequency
E
rro
r (
H
z
)
0.000%
0.100%
0.200%
0.300%
0.400%
0.500%
0.600%
E
rro
r (
%
)
Error (Hz)
Error (%)
Maximum Count Value 16,777,215