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Operating control interface units using the 3964R protocol
8.2
Command interpreter, systems for fixed code and read/write commands
8.2.1 Command structure
The mode commands described below behave in the same way as the corresponding
standard commands. For each mode command received, with the exception of the
RST command, the control interface unit responds with a message transmitting the
status of the control interface unit. The commands are transmitted to the control inter-
face unit in the form of data in a SEND message. The commands are encoded byte
by byte. The control interface unit acknowledges the commands with a further SEND
message, in which the status corresponding to the command is transmitted.
8.2.2 Mode commands
Description
Reset
Double-sided read
Set data carrier type
(only read/write commands)
Bild 8.8:
Mode commands
Byte 1
Mode command
Bild 8.9:
Structure of a mode command
Byte 1
Mode command
Bild 8.10:
Structure of the response message in reply to the transmitted mode command
Example:
Transmitted to the control interface unit:
Transmitted to the control system:
No message is transmitted in response to an RST command!
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
Hex identifier
01h
02h
44h
Byte 2
Parameter
Byte 2
Status/Error
Correct transmission of the "Double-sided read" command
Parameter
00h
00h
01h ... 04h
'02 00'
'02 00'
Copyright Pepperl+Fuchs, Printed in Germany
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