Object Structure
17200138_002_C0 – (2016-10) –
Leybold
27
2.4.5.3 Emission User Mode
Service Code
Service
Name
Description of Service
32
h
Set
Emission
User Mode
Automatic
The Emission is switched on and off by the Pirani
automatically.
Manual
The emission has to be switched on and off by the user
(within defined pressure limits)
Parameter
Data type
Description Semantics of Values
Emission User
Mode State
BOOL
→
below
0 sets mode to Automatic
1)
(default)
1 sets mode to Manual
2)
1)
Emission User Mode Automatic:
The emission is automatically switched ON and OFF.
The user can switch the emission OFF by using the Set Emission State service.
If the emission is switched off manually, the emission will be automatically swit-
ched on again, after the pressure rose above 3.2×10
-2
mbar and falls below
2.4×10
-2
mbar again.
2)
Emission User Mode Manual:
The emission has to be switched ON and OFF by the user, using the Set
Emission State service. The Set Emission State service may only be executed,
if the pressure is below 2.4×10
-2
mbar. If the pressure is higher, an Object State
Conflict error will be returned.
If the emission is on and the pressure rises above 3.2×10
-2
mbar, the transmitter
will switch off the emission automatically in both modes.
2.4.6 Behavior
The following behavior with respect to
Data Type
applies:
The data type value will be set automatically based upon the first valid I/O con-
nection established by the device.
If no established I/O connections exist, which include an attribute from this object,
then the
Data Type
attribute is settable provided that the object is in the
Idle State
.
The following example demonstrates this behavior:
A device specifies an instance of the S-Analog Sensor object as well as two static
Assembly object instances, both with data attribute components mapped to this
object instance. Assembly object instance ID 1 specifies INT data types and As-
sembly object instance ID 2 specifies REAL data types.
After the device is online, it is configured with an I/O connection to Assembly in-
stance ID 2. When the connection transitions to the
Established State
, this object
instance attribute
Data Type
is automatically set with the value for REAL before
any data is communicated to, or from the object instance. Any subsequent attempt
to connect to Assembly instance ID 1 would then be rejected and result in an
INVALID ATTRIBUTE VALUE error with the additional error code indicating the ID
of the offending attribute, which in this case would be the connection path.
Data Type
Set Degas State Service Data
Field
