INFICON PSG55x ATM to Medium Vacuum Gauge (DeviceNet) - Manual (Page 25)

tira58e1-a (2012-03) PxG5xx.cp
25
The output at the class attribute 94 (Active value) of the S-Analog
Sensor Object is always related to the current active instance (this could
be instance 1 or 2).
If you always want to have the same Active value in the idle or error
case the equal safe value must be set in both instances.
16 Bits are used as sensor faults. Sensor alarm byte 0 is mapped to the device
exception detail alarm 0, sensor alarm byte 1 is mapped to the device exception
detail alarm 1.
Data component Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Sensor alarm byte 0 0 0 0 0 0 0 0 0
Sensor alarm byte 1
0 0
0 0 0 0
Electronics
failure
0
16 Bits are used as sensor warnings. Sensor warning byte 0 is mapped to the
device exception detail warning 1, sensor warning byte 1 is mapped to the device
exception detail warning 2.
Data component Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Sensor warning byte 0 0 0 0 0 0 0 0 0
Sensor warning byte 1
0 0
0 0 0 0
Electronics
warning
0
8 Bits providing the current sensor alarm state of the instance. They are mapped to
device exception detail warning 0.
Data component Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Sensor alarm byte 0 0 0 0 0 0 Underrange
exceeded
Overrange
exceeded
Reading
invalid
1)
1) Logical inversion of reading valid
The S-Analog Sensor Object provides the following common services:
Service
Code
Service Name Description of Service
0E
h
Get_Attribute_Single Returns the contents of the specified attribute.
10
h
Set_Attribute_Single Modifies an attribute value.
The S-Analog Sensor Object provides the following common services:
Service
Code
Service Name Description of Service
4B
h
Zero_Adjust Used to calibrate the zero pressure value.
The Zero_Adjust service is used to cause the S-Analog sensor object device to
correct its offset error ones. This functionality can also be executed periodically by
setting the attribute 100 to true.
Parameter Data Type Description Semantics of Values
Zero_Adjust
parameter or target
value UINT or
FLOAT
depending
on data
type The target
value
for the zero
calibration
The value to which the
attribute 6 (value)
will be set  this value is
always "0". If not specified,
the default value of zero is
used.
Sensor alarm
Sensor warning
Status extension
4.4.3.3 Common Services
4.4.3.4 Object–Specific
Services
Zero_Adjust Request
Service Data Field
Parameters