Rockwell-automation 1770-KF2 Data Highway or Highway Plus Interface Mo Manual de usuario Pagina 111

  • Descarga
  • Añadir a mis manuales
  • Imprimir
  • Pagina
    / 235
  • Tabla de contenidos
  • MARCADORES
  • Valorado. / 5. Basado en revisión del cliente
Vista de pagina 110
Message Packet Formats
Chapter 5
5-32
Download Request
A computer can use this command to inform the 1775-KA module that it
wants to do a download. If the 1775-KA module grants the download
privilege, the computer may begin issuing physical reads or writes. If a
different station already has the download privilege, the second station is
denied the privilege.
Reply
Format:
(EXT STS Byte Optional)
B.
Format When Reporting an Error
TNSSTSCMD
4F
SRCDST
TNSSTSCMD
4F
SRCDST EXT
STS
A.
Format When Successful Execution
Command Format:
TNSSTSCMD
0F
SRCDST FNC
05
File Read
This is a read command, starting address of which is either a file symbol
or a block address. This starting address must point to a file of words.
The function code is 4.
TNSDST SRC CMD FNC
0F 04
PACKET
OFFSET
TOTAL
TRANS
PLC-3 LOGICAL
ADDRESS
(2-51 Bytes)
SIZESTS
TNSSTSCMD
4F
SRCDST
TNSSTSCMD
4F
SRCDST EXT
STS
DATA
— Max. of 244 Bytes
or 122 W
ords
Command
Packet:
Reply Format:
(EXT STS Byte Is Optional)
B.
Format When Reporting an Error
A.
Format When Successful Execution
Vista de pagina 110
1 2 ... 106 107 108 109 110 111 112 113 114 115 116 ... 234 235

Comentarios a estos manuales

Sin comentarios