IKA RV 10 auto, Operating Instructions Manual

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Serial interface RS 232
Configuration:
- The functions of the interface connections between the stirrer
machine and the automation system are chosen from the signals
specified in EIA standard RS 232 in accordance with DIN 66 020
Part 1.
- For the electrical characteristics of the interface and the alloca-
tion of signal status, standard RS 232 applies in accordance with
DIN 66 259 Part 1.
- Transmission procedure: asynchronous character transmission in
start-stop mode.
- Type of transmission: full duplex.
- Character format: character representation in accordance with
data format in DIN 66022 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 device to the computer
takes place only at the computer’s request.
Interfaces and outputs
The device can be operated in “Remote” mode via an RS 232 or
USB interface using
labworldsoft ® laboratory software.
The RS 232 interface at the back of the device, is fitted with a
9-pole SUB-D jack and can be connected to a PC. The pins have
serial signals. The USB interface is located on the left-hand side of
the display on the drive unit and can be connected to a PC using
the USB cable supplied.
Note: Please comply with the system requirements together with
the operating instructions and help section included with the soft-
ware.
USB Interface
The Universal Serial Bus (USB) is a serial bus for connecting the
device to the PC. Equipped with USB devices can be connected to
a PC during operation (hot plugging). Connected devices and their
properties are automatically recognized. Use the USB interface in
conjunction with
labworldsoft ® for operation in "Remote" mode
and also to update the firmware.
Installation:
First, download the latest driver for
IKA devices with USB inter-
face from: http://www.ika.com/ika/lws/download/usb-driver.zip.
Install the driver by running the setup file. Then connect the IKA
device through the USB data cable to the PC. The data commu-
nication is via a virtual COM port. Configuration, command syn-
tax and commands of the virtual COM ports are as described in
RS 232 interface.
Command syntax and format:
The following applies to the command set:
- Commands are generally sent from the computer (Master) to the
device (Slave).
- The lab device sends only at the computer’s request. Even fault
indications cannot be sent spontaneously from the machine to the
computer (automation system).
- Commands are transmitted in capital letters.
- Commands and parameters including successive parameters are
separated by one space (Code: hex 0x20).
- Each individual command (incl. parameters and data) and each
response are terminated with CR LF (Code: hex 0x0d hex 0x0A)
and have a maximum length of 128 characters.
- The decimal separator in a number is a dot (Code: hex 0x2E).
The above details correspond as far as possible to the recommenda-
tions of the NAMUR working party (NAMUR recommendations for
the design of electrical plug connections for analogue and digital
signal transmission on individual items of laboratory control equip-
ment, rev. 1.1).
The NAMUR commands and the additional specific
IKA co mmands
serve only as low level commands for communication between the
rotary evaporator and the PC. With a suitable terminal or commu-
nication program these commands can be transmitted directly to
the rotary evaporator. The
IKA software package, labworldsoft
®
,
provides a convenient tool for controlling the rotary evaporator and
collecting data under MS Windows, and includes graphical entry
features, for motor speed ramps for example.
The following table summarizes the (NAMUR) commands under-
stood by the
IKA control equipment.
Abbreviations used:
m =
Numbering parameter (integer)
X = 2 Temperature heating bath
X = 3 Safety temperature heating bath
X = 4 Rotation speed
X = 60 Interval time (1 - 5999 seconds, 1 <= m >=5999)
X = 61 Timer (1 - 1440 minutes, 1 <= m >=1440)
X = 62 Upper lift position (OUT_SP_62 1-> drive lift up)
X = 63 Lower lift position (OUT_SP_62 1-> drive lift down)
X = 66 Vacuum controller pressure
X = 70 Vacuum controller hysteresis
X = 74 Tempering medium heating bath (OUT_SP_74
0=oil, OUT_SP_74 1=water)
NAMUR Commands Function
IN_NAME Request designation
IN_PV_X
X = 4
Read actual value
IN_SOFTWARE Request software Id-number, date and
version
IN_SP_X
X = 4
Read target value input
OUT_SP_X m
X = 1,60,61,62
Set target value to m
RESET Switch to normal operation
START_X
X = 4,60,61,62
Switch on appliance (remote) function
STATUS Status output
0:Manual operation without interruption
1:Automatic operation Start (without in-
terruption)
ERROR z (z error number see table)
STOP_X
X = 1,60, 61, 62
Switch off appliance function. The varia-
ble set with OUT_SP_X remains