INFICON BPG402-SD ATM to Ultra-High Vacuum Gauge (DeviceNet) - Manual (Page 26)

26
tira46e1 (2004-11) BPG402-SDv1.cp
Service
Code
Service Name Description of Service
32
hex
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 See 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 3.2E-2mbar and falls below 2.4E-
2mbar 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 2.4E-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 3.2E-2mbar, the gauge will
switch off the emission automatically in both modes.
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.
2.4.5.3 Emission User Mode
Set Degas State Service
Data Field
2.4.6 Behavior
Data Type