Installation, Operating & Maintenance Instructions
Series 615 DN 40 (I.D. 1.5”), RS485
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel +41 81 771 61 61 Fax +41 81 771 48 30 [email protected] www.vatvalve.com
289111EB
2013-02-05
65/96
Setup function
Command
Acknowledgement
(within 10ms after reception of command)
Description
RANGE
CONFIGURATION
Set
[s:21][abcdefgh][CR][LF]
[s:21][CR][LF]
Get
[i:21][CR][LF]
[i:21][abcdefgh][CR][LF]
data length 8 characters
a
range for POSITION:
0
= 0
– 1‟000,
1
= 0
– 10‟000,
2
= 0
– 100‟000
bcdefgh
upper value for PRESSURE and SENSOR READING:
1000
...
1000000
e.g. 010000 -> pressure range 0
– 10‟000
This function defines the communication range between the valve and the host computer for
POSITION, PRESSURE and SENSOR READING.
Note:
In case ZERO has been performed, gauge offset for PRESSURE and SENSOR
READING is compensated.
Note:
In case 2 sensor operation for pressure control is selected, PRESSURE covers high
range gauge because switchover between sensors is done automatically.
SENSOR 1 READING and SENSOR 2 READING always return full scale values according
to selected range.
Above picture shows a 2 sensor system. In this configuration sensor 2 covers low range (100 mTorr) and sensor 1
covers high range (1 Torr). RANGE CONFIGURATION f
or PRESSURE resp. SENSOR READING is set to 10‟000.
Switchover between sensors is done automatically.
0
-10V
High range
sensor
Low range
sensor
0
-10V
SENSOR 1 READING
0
– 10’000
100 mTorr
1 Torr
0 mTorr
SENSOR 2 READING
0
– 10’000
PRESSURE
0
– 10’000