INFICON PSG55x ATM to Medium Vacuum Gauge (DeviceNet) - Manual (Page 27)

tira58e1-a (2012-03) PxG5xx.cp
27
Following is the instance 2 with the subclass extension of the heat transfer mano-
meter part of the gauge (valid for PCG55x).
Attribute
ID
Access rule NV/
V
Name DeviceNet
data type Description of attribute Semantics of values
3 →
"Semantics"
NV Data type USINT Determines the data type of
value
and all related attributes
as specified in this table.
→ "Semantics" section below
[default] = INT
4 →
"Semantics"
NV Data units UINT Determines the units context
of value and all related attrib-
utes. [default] = Counts
5 Get V Reading
valid BOOL Indicates that the value attrib-
ute contains a valid value. 0 = invalid
1 = valid
(invalid: e.g., sensor is out of its specified
range)
6 Get V Value INT or REAL Analog input value. The corrected, converted, calibrated final
value of the sensor.
→ "Semantics" section
7 Get V Status BYTE Alarm and warning state of
this object instance. = 0
10 Get NV Full scale INT or REAL The value of full scale for the
sensor. [default] = maximum allowable value for
the data type
25 Set NV Safe state USINT Specifies the behavior for the
value
for states other than
execute.
→ "Semantics" section below
[default] = 0
26 Set NV Safe value INT or speci-
fied by data
type
The Value to be used for safe
state = safe value → "Semantics" section below
[default] = 0
32 Get NV Overrange INT or REAL Specifies the highest valid
value. The value above which attribute reading
valid
is set to invalid.
[default] = maximum allowable value for
the data type
33 Get NV Under-
range INT or REAL Specifies the lowest valid
value. The value below which attribute reading
valid
is set to invalid.
[default] = minimum allowable value for
the data type
94 Get V Sensor
warning Structure of
byte Bit definitions of sensor warn-
ings. default = 0
→ "Semantics" section below
95 Get V Sensor
alarm Structure of
byte Bit definitions of sensor
alarms. default = 0
→ "Semantics" section below
96 Get V Status
extension Byte Bit-mapped byte providing
additional status bits of an S-
Analog sensor instance. default = 0
→ "Semantics" section below
99 Get V Subclass UINT Identifies a subset of addi-
tional instance attributes, ser-
vices and behaviors. 2 = Heat Transfer Vacuum Gauge
101 Set NV Pirani OFF
Cmd
USINT Flag to switch off the Pirani in
a dangerous environment 0 = Pirani is always on;
1 = Pirani switches off at 120% of
s32CombineUpperLimit;
2 = Pirani is always off
If the Pirani is switched off, the measure-
ment part (wheatstone bridge) is not
powered and the instance outputs it’s
"Safe State" value
In this case the Status extension is also
set to "Reading Invalid"
102 Set NV Pirani
Adjust Hv
Pressure INT or speci-
fied by data
type Target value for the high
vacuum (hv) adjustment <1E-4mbar = standard hv adjustment,
other values = adjustment to this value
4.4.3.6 PCG55x - Instance
Attributes of Instance 2