Rockwell-automation 1770-KF2 Data Highway or Highway Plus Interface Mo Instrukcja Użytkownika Pobierz pdf (Strona 114)

Message Packet Formats

Chapter 5

5-35

Shutdown Request

This command is used by the computer to ask the 1775-KA module to

initiate either a PLC-3 shutdown (if the computer has download

privileges) or a freeze on file allocations (if the computer has upload

privileges). The computer cannot issue this command until it has

successfully transmitted an upload or download request to the 1775-KA

module.

Format:

(EXT STS Byte Optional)

Format When Reporting an Error

TNSSTSCMD

SRCDST

TNSSTSCMD

SRCDST EXT

STS

Format When Successful Execution

Command Format:

TNSSTSCMD

SRCDST FNC

Upload Request

This command is used by the computer to inform the 1775-KA module

that it wants to do an upload. If the module grants the upload privilege,

the computer may begin issuing physical reads. If a different station

already has the upload privilege, the second station is denied the privilege.

The function code is 6.

Format:

(EXT STS Byte Optional)

Format When Reporting an Error

TNSSTSCMD

SRCDST

TNSSTSCMD

SRCDST EXT

STS

Format When Successful Execution

Command Format:

TNSSTSCMD

SRCDST FNC

1 2 ... 109 110 111 112 113 114 115 116 117 118 119 ... 234 235

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Rockwell-automation 1770-KF2 Data Highway or Highway Plus Interface Mo Instrukcja Użytkownika Strona 114