Rockwell-automation 1771-OFE/B Analog Output Module User Manual Manuel d'utilisateur Page 72

  • Télécharger
  • Ajouter à mon manuel
  • Imprimer
  • Page
    / 84
  • Table des matières
  • DEPANNAGE
  • MARQUE LIVRES
  • Noté. / 5. Basé sur avis des utilisateurs
Vue de la page 71
B-2
Publication 1771Ć6.5.30 - November 1998
Rungs 2 and 3
These OUTPUT ENERGIZE instructions (012/01 and 012/02)
define the number of words to be transferred. This is accomplished
by setting a binary bit pattern in the module’s output image table
control byte. The binary bit pattern used (Bits 01 and 02 energized)
is equivalent to six words or channels and is expressed as 110 in
binary notation.
Rung Summary
Once the block transfer read operation is complete, the processor
automatically sets Bit 07 in the input image table status byte and
stores the block length of the data transferred.
Figure B.1
Multiple GET Instructions
Data Table
07
1
R
Control
Byte
010
012
017
027
030
060
065
110
112
117
130
Output Image Table Control
Byte Contains Read
Enable Bit and Block
Length in Binary Code
Data Address
Contains Module
Address in BCD
Input Image Table
Status Byte
Contains Done Bit
Storage Location
Contains File
Address in BCD
R = Read 07 = Bit
120
07
1
R
Status
Byte
060
Output
Image Table
Timer/Counter
Accumulated
Values Area
Input
Image
Table
Timer/Counter
Preset
Values Area
First Address,
Destination of
Transferred Data
12994
113
02
012030
120
130
060
GG
07
012
01
012
02
1
2
3
Vue de la page 71
1 2 ... 67 68 69 70 71 72 73 74 75 76 77 ... 83 84

Commentaires sur ces manuels

Pas de commentaire