BUSCH VacTest, Instruction Manual, Page: 13 / 24

Communication | 6
Instruction Manual VACTEST DCC 400_EN_en 13 / 24
6.2 Commands Overview
Main commands:
Code Description DTP
400 DPP
400 DPH
400 DPC
400 DCC
400
TD Displays the device type. x x x x x
PN Displays the product name. x x x x x
SD Displays the device serial number . x x x x x
SH Displays the sensor head serial number. x x x x x
VD Displays the device's hardware version. x x x x x
VF Displays the device's firmware version. x x x x x
VB Displays the device's bootloader version. x x x x x
BR Set the baud rate for data transmission
Value range: 9600, 14400, 19200, 28800, 38400, 57600, 115200 Bd. x x x x x
RD Display and set the time delay between receiving a telegram and sending
the answer.
Value range: 1 … 99999 μs (default 5500 μs). x x x x x
DR Make a device reset. x x x x x
MR Displays the measurement range of the gauge. x x x x x
MV Displays the current pressure measurement. x x x x x
M1 Displays the current pressure of the Pirani sensor. x x x x
M2 Displays the current pressure of the Piezo sensor. x
M3
(2)
Displays the current pressure of the hot cathode sensor. x
M4
(2)
Displays the current pressure of the cold cathode sensor. x
DU
(1)
Display and set the pressure unit used for the LCD display of the gauge.
Value range: mbar (default), Torr, hPa. x x x x x
DO
(1)
Display and set the display orientation, i.e. the display can be rotated by
180°.
Value range: 0 (default), 1 (rotated 180°). x x x x x
R1
Display and set the relay mode: see chapter Setpoints [ ► 15] for more in-
formation.
x x x x x
R2
AH
Adjustment of the Pirani sensor at atmospheric pressure. See chapter Read-
justment for more information. x x x x
AL Adjustment of the Pirani sensor at zero pressure. See chapter Readjustment
for more information. x x x x
(1)
Valid only for transmitters with LCD display.
(2)
Not available when cathode is switched off.