Installation, Operating & Maintenance Instructions
Series 650 DN 100-250 (I.D. 4“ - 10”), RS485
VAT Vakuumventile AG, CH-9469 Haag, Switzerland
Tel ++41 81 771 61 61 Fax ++41 81 771 48 30 Email
www.vatvalve.com
271149EA
2007-06-12
52/77
Command
Acknowledgement
(within 10ms after reception of command)
Setup function
Description
Set [s:04][abcdefgh][CR][LF]
[s:04][CR][LF]
Get [i:04][CR][LF]
[i:04][abcdefgh][CR][LF]
VALVE
CONFIGURATION
data length 3 characters
a
valve position after power up:
0 = closed, 1 = open
b
valve position after power failure: 0 = closed, 1 = open
c
0 (reserved, do not change)
d
0 (reserved, do not change)
e
0 (reserved, do not change)
f
0 (reserved, do not change)
g
0 (reserved, do not change)
h
0 (reserved, do not change)
This function does the valve configuration.
Set [s:01][abcdefgh][CR][LF]
[s:01][CR][LF]
Get [i:01][CR][LF]
[i:01][abcdefgh][CR][LF]
SENSOR
CONFIGURATION
data length 8 characters
a
0 = no sensor
1 = 1 sensor operation (sensor 1 input)
2 = 2 sensor operation with automatic changeover
(low range = sensor 2 input, high range = sensor 1 input)
3
= 1 sensor operation (sensor 2 input)
4
= 2 sensor operation with automatic changeover
(low range = sensor 1 input, high range = sensor 2 input)
Note: Sensor operation modes 2, 3 and 4 are possible with 2 sensor hardware
(650 . . - . . . K - . . . .) only.
Note: For applications where the high range sensor is used for for monitoring
purpose only, select sensor operation modes 1 or 3 for pressure control with
low range sensor and read high range sensor from «SENSOR 2 READING»
resp. «SENSOR 1 READING».
b
1 = ZERO enabled, 0 = ZERO disabled
cdefgh
High range / Low range sensor full scale ratio * 1’000 (1000 … 100000).
In case of a 1 sensor valve use any value within the valid range.
This function does the sensor configuration for pressure control.