The Real Time Sample (RTS) period is too low.

The following table indicates the minimum RTS value (in milliseconds) that you can enter for the 1756-IF16 and 1756-IF8 modules, based on the Module Filter value.
Module Filter Value
Module Filter Integer
Floating Point
Single
Diff
HS
Single
Diff
HS
10 Hz
488
244
122
488
244
122
50 Hz
88
44
22
88
44
22
60 Hz
88
44
22
88
44
22
100 Hz
56
28
14
56
28
14
250 Hz
28
14
7
28
14
7
1000 Hz
16
8
5
18
11
6
where:
Single = Single-ended mode
Diff = Differential mode
HS = High-speed mode
For example, for a Module Filter value of 10 Hz on an IF16 module in Integer Single-ended mode, the minimum RTS value is 488 ms.
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