IKA RV 10 control FLEX auto - Manual (Page 51)

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Serial interface RS 232 (V24)
Configuration
- The functions of the interface lines between the device and the au-
tomation system are a selection from the signals specified in the EIA
standard RS232 C, as per DIN 66 020 Part 1.
- For the electrical characteristics of the interface and the allocation of
signal status, standard RS 232 C 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 for-
mat 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 device to the computer takes
place only at the computer’s request.
Command syntax and format
The following applies to the command set:
- Commands are generally sent from the computer (Master) to the device
(Slave).
- The Rotary evaporator sends only at the computer’s request. Even fault
indications cannot be sent spontaneously from the Rotary evaporator to
the computer (automation system).
- Commands are transmitted in capital letters.
- Commands and parameters including successive parameters are separa-
ted 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 0X20E).
The above details correspond as far as possible to the recommendations
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 equipment, rev. 1.1).
The NAMUR commands and the additional specific IKA ® co mmands serve
only as low level commands for communication between the rotary eva-
porator and the PC. With a suitable terminal or communications program-
me these commands can be transmitted directly to the rotary evaporator.
The IKA
® software package, labworldsoft, provides a convenient tool for
controlling rotary evaporator and collecting data under MS Windows, and
includes graphical entry features, for motor speed ramps for example.
The following table summarises the (NAMUR) commands understood by
the IKA
® control equipment.
HB 10
Data is exchanged between the heating bath and the drive unit by means
of an infrared link. These are located on the left display side of the hea-
ting bath or on the right side of the drive unit. Do not place any objects
between the two operating units as otherwise the data transfer may be
interrupted (fig. 22)!
RV10 control
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, see fig. 20, 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 note the system requirements as well as the operating ins-
tructions and help section included with the software.
USB Interface
The Universal Serial Bus (USB) is a serial bus system used to connect the
RV 10 control with the PC (Fig. 23). Devices that support USB can be con-
nected to each other whilst they are running (hot pluggable) and provide
automatic recognition of the connected devices and their properties.
Use the USB interface in conjunction with labworldsoft
® for operation in
“Remote” mode to update the solvent library. Navigate to http://www.
ika.net/ika/lws/download/RV10.cfg to update.
Installation
Connect the RV 10 control to the PC using the USB data cable. The RV 10
control will then transmit information to the Windows operating system
to tell it which device drivers are required. Windows will then either:
- Load the driver,
- Install the driver automatically if not already installed,
- Prompt the user to perform a manual installation.
Navigate to http://www.ika.net/ika/lws/download/stmcdc.inf.
Interfaces and outputs
Fig. 22
IR
Fig. 23