Rockwell-automation 1756-IH16ISOE ControlLogix Sequence of Events Modu Instrukcja Użytkownika Strona 127

  • Pobierz
  • Dodaj do moich podręczników
  • Drukuj
  • Strona
    / 160
  • Spis treści
  • BOOKMARKI
  • Oceniono. / 5. Na podstawie oceny klientów
Przeglądanie stron 126
Publication 1756-UM528A-EN-P - April 2004
Integrating The HiProm GPS Module (1756HP-GPS) into a ControlLogix Sequence of Events Module System B-9
You do NOT need to copy the timestamp pair from the 1756HP-GPS
module to the Sequence of Events module’s output tags if:
you convert CST times to UTC manually via messaging to the
1756HP-GPS module. In this case, you must message every
timestamp from the Sequence of Events module.
or
you only need the relative time of events (e.g., breaker one
tripped 3ms after breaker 2).
Figure B.5 shows the difference between using CST and UCT
timestamps.
Figure B.5
0 0 0 0 0 0 0
0 0 0 0 0 0 0
0 1 0 1 1 0 0
0 0 0 0 0 0 0
0 0 0 0 0 0 0
0 0 0 0 0 0 0
0 0 0 0 0 0 0
0 0 0 0 0 0 0
0 1 0 1 1 0 0
0 0 0 0 0 0 0
0 0 0 0 0 0 0
0 1 0 1 1 0 0
0 0 0 0 0 0 0
0 0 0 0 0 0 0
0 0 0 0 0 0 0
0 0 0 0 0 0 0
0 0 0 0 0 0 0
1 1 1 0 1 0 0
1 1 1 0 1 0 0
43794
Input 0
Input 1
Input 2
Input 15
Module Sends Timestamp in CST Format
The module is configured so that input 1 is Enable
CST Capture-enabled for OFF to ON transitions.
When input 1 transitions from OFF to ON, the
module:
1. Timestamps the transition
2. Sends input data, with the timestamp in
CST format, to the controller.
Module Sends Timestamp in UCT Format
The module is configured so that input 1 is Enable
CST Capture-enabled for OFF to ON transitions
and to send timestamp data in UCT format. In
other words, the controller copied timestamp data
to the following tags:
O.UCTTime
O.CSTTime
as described on page B-8.
When input 1 transitions from OFF to ON, the
module:
1. Timestamps the transition.
2. Converts the timestamp from CST to UCT
format.
3. Sends input data, with the timestamp in
UCT format, to the controller..
Input 0
Input 1
Input 2
Input 15
To controller
in CST format
1
2
To controller
in UCT format
1
2
3
Przeglądanie stron 126
1 2 ... 122 123 124 125 126 127 128 129 130 131 132 ... 159 160

Komentarze do niniejszej Instrukcji

Brak uwag