3 semantics – INFICON PSG55x ATM to Medium Vacuum Gauge (DeviceNet) User Manual
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tira58e1-a (2012-03) PxG5xx.cp
The device configuration string is composed (separated by blanks) depending on
the bits set in the DeviceConfig:
Description
Bit
Abbr.
Setpoints
4
0 / 1 = without / with setpoints
SP
Potential separation
5
0 / 1 = without / with potential separation
PS
Tungsten filament
6
0 = tungsten
WO
Nickel filament
1 = nickel
NI
Atmosphere sensor
7
0 / 1 = without / with atmosphere sensor
ATM
Display
8
0 / 1 = without / with display
DIS
DeviceNet
9
0 / 1 = without / with DeviceNet
DN
Profibus
10
0 / 1 = without / with Profibus
PB
Capacitance Diaphragm sensor
15
0 / 1 = without / with CDG
CDG
Analog out
16
0: U = 6.143 +1.286 × log10(p) [0 … 10 V] AO0
Analog out
17
1: U = 5.5 + log10(p) [1 … 9 V]
AO1
Analog out
18
3: U = 5.875 + log10(p) [1.57 … 9.05 V]
AO3
Heat Transfer (Pirani) vacuum sensor
20
0 / 1 = without / with Pirani
PIR
Example for the return value of Device Configuration:
"P WO ATM DIS DN CDG AO0 PIR"
This attribute represents the current state of the device. Its value changes as the
state of the device changes. The following values are defined:
Attribute value
State
0 Undefined
1 Self
testing
2 Idle
3 Self-test
exception
4 Executing
5 Abort
6 Critical
fault
In case of a self-test exception restart the device with a reset out of the box
(identity object class 1, instance 1, service 5, service target value: 1).
A single byte attribute whose value indicates the status of the alarms and warnings
for the device. The device supports the expanded mode.
For the expanded mode, bit seven of exception status attribute is set to one;
exceptions are reported through the communication of this exception status at-
tribute, formatted as specified in the table below. In addition, the exception detail
attributes are supported. The exception status bits are determined by a logical
"OR" of the related exception detail bits, as indicated.
Bit Function
0
ALARM / device-common
1)
1
ALARM / device-specific
2
ALARM / manufacturer-specific
3
reserved, set to 0
4
WARNING / device-common
1)
5
WARNING / device-specific
6
WARNING / manufacturer-specific
7
1
≙
Expanded Method
1)
The alarm or warning is not specific to the device type or device type manufacturer.
4.3.3 Semantics
Device configuration (ID 10)
Device status (ID 11)
Exception status (ID 12)
Exception status bitmap