Interface And Output - IKA LR 1000 basic Mode D'emploi

Display:
Here the user can specify which information (torque trend, pH
value, or timer value) is to be displayed on the working screen.
Graph:
Axis allocation:
You can choose 4 options (temperature, speed, torque or
pH value) for axis allocation. A tick (√) means that the op-
tion is activated.
Axis scaling:
The axes can be scaled automatically or manually.
Programs:
5 user-defined speed (rpm) time profiles can be created
in "Programs". You can also specify whether intermittent
mode is activated in the programs or not. If interval mode is
activated, the values set for "intermittent mode" are adopt-
ed for operating time / stop time.
Note: When using intermittent mode:
Select the "Stirring" menu:
• Select "Intermittent mode"
• Select "Run/stop" (the time can be set under the menu
item "Interval")
• Save the input by pressing "OK"
Start:
Under the menu option "Start", you can turn the rotary/
push knob to select "Infinite loop" or "Loop count". Press
the rotary/push knob to confirm the setting "Infinite loop",
and start the program control, or enter a number then press
the rotary/push knob to confirm the loop count you have
entered and then start the program control.
Edit:
Use the rotary/push knob to select "Edit", to start editing
the selected program parameters. You can edit, delete, in-
sert or save a selected segment in the program. When you
have edited the program time for at least one segment, a
symbol appears for the relevant program.
Delete:
When a selected program is deleted by pressing the rotary/
push knob on the menu item "Delete", all program param-
eters are emptied. The symbol disappears.
View: Display details of selected program.
Modules:
The valve is configured and activated in "Modules".
Note: With a started "Program", the M1 segment settings
have a higher priority.
ON:
This menu item opens or closes the valve in accordance
with the default status.
Default status:
Defines the default status (OFF) of the external valve as
"Open" or "Closed". This depends on the valve type (rest
position open or closed).
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Temperature (temperature-dependent control of the valve):
When activating the rule "int/ext > Set Temperature" the
valve is regulated automatically depending on the set tem-
perature.
Regulation stability can be optimised using the "Hysteresis"
value.
Note: int/ext stands for the actual temperature to be regu-
lated, in accordance with the regulation method selected
(internal (int) or external (ext)).
Safety:
Time Out:
Here you can set a time out. This time out goes into effect
if the communication between the device and the PC has
failed. In this case, the device continues to run with the
set speed and temperature.
Password:
In the menu, the user can protect the device settings using
a password. The user is requested to input the password in
order to access the working screen (factory setting: 000).
Safe temperature confirmation:
Here you must confirm the safety temperature value of the
heating block.
Settings:
Languages:
Here allows the user to select the desired language by turn-
ing and pressing the rotary/push knob (A). A tick (√) indi-
cates the language that is set for the system.
Display:
Here allows the user to change the background color of the
working screen.
Sound:
Here allows the user to activate/deactivate the key-press
sound and to set the volume.
Factory settings:
Here the user can reset the device to factory settings. The
system requests confirmation to recreate the factory settings.
Pressing the "OK" button resets all the system settings to the
original standard values set at dispatch from the factory.
Information:
The "Information" option offers the user an overview of the
most important system settings of the device.
Interfaces and output
The device can be operated in "Remote" mode via the RS 232
interface or the USB interface connected to a PC and with the
laboratory software Labworldsoft ® .
Note: Please comply with the system requirements togeth-
er with the operating instructions and help section included
with the software.
USB interface
The Universal Serial Bus (USB) is a serial bus for connecting
the device to the PC. Equipped with USB devices can be con-
nected to a PC during operation (hot plugging). Connected
devices and their properties are automatically recognized.
Use the USB interface in conjunction with Labworldsoft
operation in "Remote" mode and also to update the firm-
ware.
USB device drivers
First, download the latest driver for IKA devices with USB
interface from
http://www.ika.com/ika/lws/download/usb-driver.zip
and install the driver by running the setup file. Then con-
nect the IKA device through the USB data cable to the PC.
The data communication is via a virtual COM port. Con-
figuration, command syntax and commands of the virtual
COM ports are as described in RS 232 interface.
RS 232 interface
Configuration
• The functions of the interface connections between
the machine and the automation system are chosen
from the signals specified in EIA standard RS 232 in ac-
cordance with DIN 66 020 Part 1.
• For the electrical characteristics of the interface and the
allocation of signal status, standard RS 232 applies in
accordance with DIN 66 259 Part 1.
• Transmission procedure: asynchronous character trans-
mission in start-stop mode.
• Type of transmission: full duplex.
• Character format: character representation in accor-
The following table summarises the (NAMUR) commands understood by the IKA control equipment.
Abbreviations used:
X,y = numbering parameter (integer number)
m = variable value, integer
n = value of variable, floating point number
X = 1 Pt100 thermometer (external temperature sensor)
X = 2 temperature (heating block)
X = 3 safety temperature
X = 4 stirring speed
X = 6 safety stirring speed
dance with data format in DIN 66 022 for start-stop
mode. 1 start bit; 7 character bits; 1 parity bit (even);
1 stop bit.
• Transmission speed: 9600 bit/s.
• Data flow control: none
• Access procedure: data transfer from the stirrer ma-
chine to the computer takes place only at the comput-
er's request.
Command syntax and format
The following applies to the command set:
• Commands are generally sent from the computer (Mas-
ter) to the stirrer machine (Slave).
® for
• The stirrer machine sends only at the computer's re-
quest. Even fault indications cannot be sent spontane-
ously from the stirrer machine to the computer (auto-
mation system).
• Commands are transmitted in capital letters.
• Commands and parameters including successive pa-
rameters are separated by at least one space (Code:
hex 0x20).
• Each individual command (incl. parameters and data)
and each response are terminated with Blank CR LF
(Code: hex 0x20 hex 0x0d hex 0x20 hex 0x0A) and
have a maximum length of 80 characters.
• The decimal separator in a number is a dot (Code: hex
0x2E).
The above details correspond as far as possible to the rec-
ommendations of the NAMUR working party (NAMUR rec-
ommendations for the design of electrical plug connections
for analogue and digital signal transmission on individual
items of laboratory control equipment, rev. 1.1).
The NAMUR commands and the additional specific IKA co-
mmands serve only as low level commands for communica-
tion between the machine and the PC. With a suitable ter-
minal or communications programme these commands can
be transmitted directly to the equipment. The IKA software
package, labworldsoft ® , provides a convenient tool for con-
trolling device and collecting data under MS Windows, and
includes graphical entry features, for motor speed ramps for
example.
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