VAT 615 Series

Installation, Operating & Maintenance Instructions
Series 615 DN 40 (I.D. 1½”), DeviceNet
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel +41 81 771 61 61 Fax +41 81 771 48 30 CH@vatvalve.com www.vatvalve.com
603476EA
2013-07-25
68/102
Command
Service Code
Class ID
Instance ID
Attribute ID
Service
data length
(number of bytes)
Service
data field
Description
SENSOR OFFSET
VALUE
Get
14
49
1 (Sensor 1)
2 (Sensor 2)
12
2 int
4 float
These commands return the offset voltage (adjusted by ZERO) of the sensor 1 according to
selected DATA TYPE.
Nominal range is -1400 … +1400 but it may be scaled. Refer also to command GAIN and
picture on the following page for details.
SENSOR GAIN
Set
16
49
1 (Sensor 1)
2 (Sensor 2)
3 (Position)
14
2 int
4 float
specified by
attribute 3
X
Get
14
X: gain, max. value is 3.2767, data type is floating point
This command selects the gain for PRESSURE/POSITION and allows for scaling. The gain
pressure can only be used if the PRESSURE/POSITION UNITS is “counts”.
Default value is 1 (E8 03h).
e.g.:
Gain
Pressure/Position
value
X(float)
X(int)
0.1
1’000
3Dh CCh CCh CCh
E8 03
1.0
10’000
3Fh 80h 00h 00h
10 27
3.2767
32’767
40h 51h B5h 73h
FF 7F
SENSOR TYPE
Set
16
49
1 (Sensor 1)
2 (Sensor 2)
198
1
X
Get
14
X: 0 Pa
1 bar
2 mbar
3 ubar
4 Torr
5 mTorr
6 atm
7 psi
8 psf
This command sets the unit of sensors.
SENSOR
FULL SCALE
Set
16
49
1 (Sensor 1)
2 (Sensor 2)
199
4
X
Get
14
X: 0 sensor not in use
1…1000000 sensor full scale
This command sets the full scale of sensors.