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
44/77
Command
Acknowledgement
(within 10ms after reception of command)
Control function
Description
Set [R:][xxxxxx][CR][LF]
[R:][CR][LF]
Get [i:38][CR][LF]
[i:38][00xxxxxx][CR][LF]
POSITION CONTROL
data length 6 characters for writing
8 characters starting with double zero for reading
xxxxxx
position SETPOINT, value depends on configuration,
refer to «RS485 setup commands, RANGE CONFIGURATION»
for
details
Change to POSITION CONTROL mode and transfer of position SETPOINT value resp.
reading of position SETPOINT.
Note: Reading returns position setpoint only in case pressure control is not selected.
Set [C:][CR][LF]
[C:][CR][LF]
CLOSE VALVE
Valve will close.
Set [O:][CR][LF]
[O:][CR][LF]
OPEN VALVE
Valve will open.
Set [S:][0xxxxxxx][CR][LF]
[S:][CR][LF]
Get [i:38][CR][LF]
[i:38][0xxxxxxx][CR][LF]
PRESSURE CONTROL
data length 8 characters starting with a zero
xxxxxxx
pressure SETPOINT, value depends on configuration,
refer to «RS485 setup commands, RANGE CONFIGURATION»
for
details
Change to PRESSURE CONTROL mode and transfer of pressure SETPOINT resp. reading
of pressure SETPOINT.
Note: Reading returns pressure setpoint only in case pressure control is selected,
otherwise position setpoint is returned.
