Interfaces And Outputs - VWR VOS 60 control Mode D'emploi

Interfaces and outputs

The device can be operated in "Remote" mode via an RS 232 or USB interface using the laboratory software labworldsoft
The RS 232 interface at the back of the device is fitted with a 9-pole SUB-D port which can be connected to a PC. The pins
are assigned serial signals.
The USB port at the rear of the stirrer is used for the connection between the PC and the Wireless Controller (WiCo).
The Wireless Controller also has a USB port, located on its right side. It can also be used to connect to a PC for "remote
control".
Note: Please comply with the system requirements together with the operating instructions and help section included with the
software.
USB interface
The Universal Serial Bus (USB) is a serial bus system which allows the stirrer to be connected to the PC. Devices that sup-
port USB can be connected to each other whilst they are running (hot plugging) and provide automatic recognition of the
connected devices and their properties.
Use the USB interface in conjunction with labworldsoft
To load the update, open http://www.ika.net/ika/lws/download/EUROSTAR.cfg.
Installation
Once the VOS 60 control is connected to the PC using the USB data cable, it will then transmit information to the Win-
dows operating system to tell it which device drivers are required. Windows will then either:
- Load the driver
- Install the driver automatically, if it is not already installed
- Prompt the user to perform a manual installation
Open http://www.ika.net/ika/lws/download/stmcdc.inf.
Serial interface RS 232 (V24)
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 allocation 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 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 machine 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 stirrer machine (Slave).
- The stirrer machine sends only at the computer's request. Even fault indications cannot be sent spontaneously from the
stirrer machine to the computer (automation system).
- Commands are transmitted in capital letters.
- Commands and parameters including successive parameters 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 recommendations of the NAMUR working party (NAMUR recom-
mendations for the design of electrical plug connections for analogue and digital signal transmission on individual items of
laboratory control equipment, rev. 1.1).
for operation in "Remote" mode and for loading the update.
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