INFICON PSG55x ATM to Medium Vacuum Gauge (DeviceNet) - Manual (Page 34)

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tira58e1-a (2012-03) PxG5xx.cp
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.
Service
Code
Service Name Description of Service
4C
h
Gain Adjust Performs an Atmosphere Adjust for the Pirani-
Sensor
4B
h
Zero Adjust Performs an High Vaccum Adjust for the
Pirani-Sensor
Parameter Data Type Description Semantics of Values
Gain Adjust parameter 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 (only adjustment to
1000 mbar possible)
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.
There are no state transitions associated with the invocation of this service. It is,
therefore, incumbent upon the user to establish the device into the desired con-
figuration prior to, and during the execution of this service. This will generally in-
volve exposing the sensor to a known environment and treating the values read
during execution of the services accordingly.
A success service response indicates that the service was accepted and the ap-
plication process started.
To perform the Gain Adjust Request vent the gauge to atmosphere and then start
the Gain Adjust Service without any target value.
To perform the Zero Adjust Request vent the gauge to high vaccum (≤5E-5mbar)
and then start the Zero Adjust Service without any target value.
Class Code 35
h
= 53
d
The Trip Point Object models the action of trip points (two relays) of the PCG/PSG
(corresponding to physical outputs) (Discrete Output Object). A trip point value,
designated as a high or low trip point, is compared to the specified source value.
This trip point is intended to be used as a process control indicator.
Attribute ID Access
rule
Name DeviceNet
data type Description of attribute
1 Get Revision UINT Revision of this object. Note: All class definitions
are required to include this class attribute.
2 Get Max
instance
UINT Maximum instance number of an object currently
created in this class level of the device.
4.4.3.16 Common Services of
S-Analog Sensor
Instance 1
4.4.3.17 User Adjust
Service
Gain Adjust Request
Service Data Field
Parameters
Zero Adjust Request Service
Data Field Parameters
4.5 Trip Point Object
4.5.1 Class Attributes