ABB ScreenMaster RVG200 Operating Instructions Manual page 83

ScreenMaster RVG200
Paperless recorder
The recorder can be configured to sample all recording channels in the group simultaneously and store the
data in internal memory and archive media (if archiving is enabled) at two rates, Primary and Secondary.
The Primary sample rate is active during normal process operating conditions and is set typically to a
relatively slow rate (depending upon process recording requirements) in order to maximize internal memory
and external archive media capacity.
The recorder can be configured to switch to a faster (Secondary) sample rate when a selected digital
source becomes active in order to record the maximum amount of detail for the period in which that source
is active; or it may be switched manually from the Logging operator menu – see Section 5.2, page 52.
Primary sample rate *
Secondary sample rate *
Sample rate
select source *
* If this parameter is changed, internally-recorded data files are recreated and unarchived data is lost.
OI/RVG200-EN
Set to between 0.125 seconds and 60 minutes – Refer to Appendix C,
page 170 for full details of internal memory and external archive media
storage capacity.
Note.

Sample rates are set using one of the following combinations of
units:
– Minutes or minutes and seconds
– Seconds
ths
– 125 of seconds (minutes and seconds must first be set to
zero).

The rate at which data is displayed in the Chart views is set
separately – see Screen interval on page 83.

The fastest sample rate setting determines the maximum screen
interval that can be selected – see Table 4.1, page 42.
Set to between 0.125 seconds and 60 minutes.
Select a signal source to enable switching between the primary and
secondary sample rates. Refer to Appendix A, page 146 for a description
of the available sources.
Note. This signal is edge-triggered. A rising edge (inactive to active)
switches to the secondary sample rate. A falling edge (active to inactive)
switches to the primary sample rate.
Secondary
Primary
7 Configuration
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