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Operating control interface units using the 3964R protocol
8.2.5
Write commands
Command
Auto Write Bytes
Single Write Bytes
Bild 8.18:
Write commands
Write commands for data carriers
Byte 1
Command
Bild 8.19:
Structure of a write command
Example:
Structure of the response message after the data has been written
Byte 1
Command
Bild 8.20:
Structure of the response message after the data has been written
Example:
Structure of the response message in the event of an error
Byte 1
Command
Bild 8.21:
Structure of the response message in the event of an error
Example:
Subject to reasonable modifications due to technical advances.
Pepperl+Fuchs Group • Tel.: Germany (06 21) 7 76-0 • USA (330) 4 25 35 55 • Singapore 7 79 90 91 • Internet http://www.pepperl-fuchs.com
IDENT-I • IVI-KHA6-4HRX, IVI-KHD2-4HRX
Byte 2
Byte 3
Head-no.
Data start 1
A single write attempt at head 1. Write 2 bytes (AAh, BBh), write,
starting at address 14h: 6B 01 00 14 02 AA BB
High nibble
Byte 2
0
Response to the above write command: 6B 01 00
High nibble
Byte 2
8
Response to the above write command if head 1 is not connected:
6B 80 06
Hex identifier
4Bh
6Bh
Byte 4
Byte 5
Data start 2
Quantity
Low nibble
Byte 2
Status/Head
Low nibble
Byte 2
Status/Head
Copyright Pepperl+Fuchs, Printed in Germany
Byte 6+7
Data
Byte 3
Status/Error
Byte 3
Status/Error
45
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