EN
10/70
2.6.2
General information for positioning and hatch commands:
The centrifuge acknowledges the transmission of the command with "ACK" when a positioning or hatch
command was sent and executes the command.
Important information for the positioning:
Centrifuges of
“Generation 2”
(software 01.xx):
During the executing of a positioning command (the rotor moves) ALL OTHER positioning
commands will be ignored.
The centrifuge will acknowledge the additional positioning commands with ACK but the command
will be ignored. The centrifuge does not execute the second command during processing of the first
command). The additional commands will be flushed.
Therefore please wait with the next positioning command until the ongoing positioning is finished.
Centrifuges of
“Generation 1”
(software 4.xxx):
During the executing of a positioning command (the rotor moves) the ongoing positioning will
immediately be cancelled and the last sent positioning command will be executed.
You can use
•
parameter 00640 to handle position 1, 2 3 and 4 with 2-place or 4-place rotors
(using the protocol of "Generation 1"),
•
parameter 00524 and 00526 to handle ALL positions with ALL rotors
(using the protocol of "Generation 2").
Time-out:
Each rotor position (1 ... 48) is fixed (held in position) for maximum 20 minutes.
After
20 minutes
the fixed position (electronical positioning and the electromagnetic brake) is automatically
deactivated. If the position is needed again please send the command for this position again.
Software-Lock via serial interface
To avoid complications with START commands (by pressing the START-key at the control panel), the software
provide the feature LOCK 5. Then the
START
- key is locked, only the
OPEN / STOP
(Generation 1
STOP
) -key is
active.
Please refer to chapter 2.10.1 (Parameter-No.: 00520) and chapter 2.10.2 (Parameter-No.: 00633)
2.7
General format of parameter content ( V = VAL = Value )
V V V V
MSD LSD MSD LSD
Lowbyte = LSB
Highbyte = MSB
Bit 3...0 3...0 3...0 3...0
= 4 digit
Bit
7....... ........0
7...... .........0
= 2 byte
Bit
15...........................................0
= 1 word
Explanation: MSD/LSD: Most/Least
significant Digit (Digit = Nibble = half byte)
MSB/LSB:
Most/Least significant Byte
MSb/LSb:
Most/Least significant Bit
Values are sent or received in principle as 4 –digit characters.
Each digit has a range:
from 30
hex
= ‘0’ to 39
hex
= ‘9’
and
from
41
hex
= ‘A’ to 46
hex
= ‘F’.
The information (VAL) of one parameter can cover the range 0000
hex
to FFFF
hex
(0 up to 65535) with one transmission.
