HeatingBOX
http://www.zennio.com
Technical Support:
http://support.zennio.com
16
The format of the control orders is independent of the valve type. The range of
the binary or parentage objects (depending on the control method) remains the
same in any case
– the actuator internally decides whether to apply power or not
to the valve depending on the order received and the valve type.
The following table summarises the device behaviour according to the valve type
and the control order received. Note that the status LED of each output indicates
whether current is supplied to the output or not and not whether the valve is open
or closed (it depends on the valve type).
Valve type
Value for
Open Valve
Control order
Output power
LED Valve state
1 bit
1 byte
Normally
closed
1
1
100%
Yes
Open
0
0%
No
Closed
0
0
100%
Yes
Open
1
0%
No
Closed
Normally
open
1
1
100%
No
Open
0
0%
Yes
Closed
0
0
100%
No
Open
1
0%
Yes
Closed
Table 1
Device behaviour according to the valve type.
Whether the output (valve) should be considered or not for the
notification in
case all valves are closed
or to calculate the
maximum control value
(see
section 2.4).
Activation and deactivation of the
status objects
of the one-bit and one-byte
control values.
Lock
function, which provides a one-bit object to temporarily deactivate the
control of the output (valve), being possible to leave it as is until it gets
unlocked, or to switch it to a particular position.
Alarms
: see section 2.4.1.2.
Cyclical monitoring
: see section 2.4.1.3.
