Commissioning; Interfaces And Outputs - IKA Vacstar digital Mode D'emploi

Commissioning

Observe the operating instructions
NOTE
for the devices.
Check if the voltage specified on the type plate matches the avail-
able mains voltage. If these conditions are met, the device is ready
for operation when it is plugged in to the mains.
The socket used must be earthed
(grounded contact).
Switching on
1. Switch on the device using the main switch (D). All display
sements are shown to enable a visual check.
2. Software version number display (e.g. vers. 1.00).
3. Operating mode display (A; B). (Factory setting: Operating
mode A)
The operating mode can be changed when you switch on the
device.
Operating mode A:
In this operating mode, the set target value is not saved when
the current run comes to an end or the device is switched off.
No automatic restart after mains power is cut off.
Switching on with several interfaces
If the pump is operated via the analogue connecting cable with
the vacuum controller VC 10 or the rotary evaporator RV 10 auto,
"VC 10" is shown on the display.
Switching off
Switch off the device using the main switch (D).
Unplug the appliance from the
mains socket to disconnect it from
the mains.
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Otherwise safe operation is not guaranteed or the device may be
damaged.
Observe the ambient conditions indicated under "Technical data".
Operating mode B:
In this operating mode, the set target value is saved when the
current run comes to an end or the device is switched off, and
the value can be changed.
Operating mode B is required particularly in combination with
the pump cut-out unit VC 2.4.
Automatic restart after mains power is cut off.
Changing operating mode:
1. Press the rotating/pressing knob (C) and switch on the
device at the main switch (D) at the same time to change
between the two operating modes.
In standalone operation or two-position operation in combination
with the vacuum controller VC 10 the target speed can be set by
turning the rotating/pressing knob (C). Push to start the pump and
push again to stop it. A flashing light on the display (B) indicates
when the device is running.
If the vacuum controller is connected to a PC, "PC" is shown on
the display (B).

Interfaces and outputs

Please comply with the system
NOTE
requirements together with the
operating instructions and help
section included with the software.
The device can be operated in "Remote" mode via an RS 232 or
USB interface using the laboratory software labworldsoft . The RS
®
232 interface (M) at the back of the device is fitted with a 9-pole
SUB-D jack which can be connected to a PC. The pins are assigned
serial signals.
USB Interface
The Universal Serial Bus (USB) is a serial bus system which allows
the device to be connected to the PC. Devices that support 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
operation in "Remote" mode and for updating the firmware using
the "Firmware update tool".
Installation
Before the device is connected with the PC using the USB data
cable, the USB driver must be installed.
The USB driver can be downloaded from the website:
Serial interface RS 232 (V 24)
Configuration:
• The functions of the interface circuit between the device and
the automation system are a selection from the signals
specified in the EIA standard RS232 as per DIN 66020 Part 1.
• Standard RS 232, corresponding to DIN 66259 Part 1 is valid
for the electric characteristics of the interface circuits and
assignment of signal states.
• Transmission process: Asynchronous character transmission
in start-stop operation.
• Transmission type: Full duplex.
• Character format: Character composition according to data
format in DIN 66022 for start-stop operation. 1 start bit, 7
character bits, 1 parity bit (even), 1 stop bit.
• Transmission speed: 9600 Bits/s.
• Data flow control: none
• Access method: Data transmission from the device to the
computer only occurs after a request from the computer.
Command syntax and format
The following points should be noted for the instruction set:
• Commands are generally sent from the computer (master) to
the device (slave).
• The device only responds to requests from the computer.
Even error messages are not send spontaneously from the
device to the computer (automation system).
• The commands are transmitted in captial letters.
• Commands and parameters, as well as consecutive parameters,
must be separated by at least one space (code: hex 0x20).
• Each individual command (including parameters and data)
and all responses are completed with CRLF (code: hex 0x20
hex 0x0d hex 0x0A) and can have a maximum length of 50
characters.
• The dot is used for decimal separators in a floating-point
value (code: hex 0x2E).
The details given above generally comply with the recommen-
dations of NAMUR (NAMUR recommendations for the design of
electrical plug-in connectors for analogue and digital signals in
laboratory MSR devices. Rev. 1.1).
The NAMUR commands and the additional IKA-specific
commands are only used as low-level commands for communication
between the device and the PC. With an appropriate terminal or
communication program, these commands can be transmitted
directly to the device.
NAMUR commands Function
IN_NAME Read device name
IN_PV_4 Read current speed value
IN_SP_4 Read rated speed value
for OUT_SP_4 Adjust the rated speed value
®
START_4 Start evacuation
STOP_4 Stop evacuation
RESET Switch to normal operating mode
OUT_NAME Set device name
OUT_SP_42@n Setting WD safety limit speed with
set value echo
OUT_WD1@m Watchdog mode 1
OUT_WD2@m Watchdog mode 2
"Watchdog" functions; monitoring of the serial data flow
If, once this function has been activated (see NAMUR commands),
there is no retransmission of the command from the computer
within the set time ("watchdog time"), the Evacuation function is
switched off in accordance with the set "watchdog" mode or is
returned to previously set target values. The data transmission may
be interrupted by, for example, a crash in the operating system,
a power failure in the PC or an issue with the connection cable
between the computer and the device.
"Watchdog" mode 1
If event WD1 should occur, the evacuation function is switched
off and ER 2 is displayed. Set watchdog time to m (20 - 1,500)
seconds, with watchdog time echo. This command launches the
watchdog function and must be transmitted within the set wat-
chdog time.
"Watchdog" mode 2
If there is an interruption in data communications (longer than the
set watchdog time), the speed target value is changed to the set
WD safety speed limit. The warning PC 2 is displayed. The WD2
event can be reset with OUT_WD2@0 - this also stops the watch-
dog function.
Set watchdog time to m (20 - 1,500) seconds, with watchdog
time echo. This command launches the watchdog function and
must be transmitted within the set watchdog time.
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