Chapter 4 CP 240 - serial
Manual VIPA System 200V
4-12
HB97E - CP - Rev. 11/30
The RK512 is an extended form of the 3964(R) procedure. The difference
is that a message header is sent ahead of the message data. The header
contains data about the size, type and length of the message data.
only 3964R
STX
DLE
Message data
DLE
ETX
BCC
Monitor delayed acknowledgment
DLE
Monitor delayed acknowledgment
STX
DLE
Reaction message
DLE
ETX
BCC
DLE
only 3964R
Active partner
Passive partner
Monitor delayed acknowledgment
Monitor delayed acknowledgment
Monitor block delay time
The QVZ is monitored between STX and DLE and between BCC and DLE.
ZVZ is monitored for the entire period of receiving the message.
When the QVZ expires after an STX, the STX is repeated. This process is
repeated 5 times after which the attempt to establish a connection is
terminated by the transmission of a NAK. The same sequence is
completed when a NAK or any other character follows an STX.
When the QVZ expires after a message (following the BCC-byte) or when
a character other than DLE is received the attempt to establish the
connection and the message are repeated. This process is also repeated 5
times after which a NAK is transmitted and the attempt is terminated.
BWZ is the max. time between acknowledgement of a request telegram
(DLE) and STX of the answer telegram. When exceeding the BWZ it is
repeatedly attempted (parameterizable by DBL) to send the request
telegram. If these attempts are unsuccessful, the transmission is
interrupted.
When the procedure driver is expecting a connection request and it
receives a character that is not equal to STX it will transmit a NAK. The
driver does not respond with an answer to the reception of a NAK.
When the ZVZ is exceeded at reception, a NAK is send and it is waited for
a new connection.
When the driver is not ready yet at reception of the STX, it sends a NAK.
3964(R)
with RK512
Procedure
Timeout times
Passive operation
Time out times:
ZNA (time delay after command)
ZVZ (character delay time)
QVZ (delayed acknowledgement time)
BWZ (block delay time)
Summary of Contents for CP 240 RS232
Page 1: ...Manual VIPA System 200V CP Order No VIPA HB97E_CP Rev 11 30...
Page 2: ...L...
Page 14: ...Chapter 1 Basics Manual VIPA System 200V 1 6 HB97E CP Rev 11 30...
Page 126: ...Chapter 5 CP 240 EnOcean Manual VIPA System 200V 5 32 HB97E CP Rev 11 30...
Page 144: ...Chapter 6 CP 240 M Bus Manual VIPA System 200V 6 18 HB97E CP Rev 11 30...
Page 148: ...Index Manual VIPA System 200V A 4 HB97E CP Rev 11 30 M Stich...
