Siemens SINUMERIK 840DE sl Commissioning Manual page 966

Functionality
5.4 Alarms
Severity of Alarms
SINUMERIK systems use three severity levels (e.g. Information, Warning and Error). The table
below shows the values at SINUMERIK system and its mapping in OpcUa Server/Client.
Severity Level
Information
Warning
Error
Additional attributes of the ConditionType
Attribute Data type
ConditionCla NodeId
ssId
ConditionCla String
ssName
ConditionNa String
me
Retain Boolean
Quality String
LastSeverity UInt16
BranchId NodeId
Comment LocalizedText
ClientUserId String
Enable
Disable
50
SINUMERIK System
0-1
2-999
1000
Mapping with respect to SINU‐
MERIK
Unique node id (sum of alarm id
and alarm instance)
Set to "SystemConditionClas‐
sType"
Set to "SystemCondition".
True when the alarm is active.
False otherwise.
According to SINUMERIK quality
attribute, below string will be set:
● BAD
● GOOD
● UNCERTAIN
Reading attributes
via(SLAE_EV_ATTR_SEVERITY)
Null
Null
Null
Not supported
Not supported
OpcUa Server/Client
1
500
1000
M/O Description
M String NodeID
SystemConditionClassType
M SystemConditionClassType
M ConditionName identifies the Condition in‐
stance that the Event originated from. It
can be used together with the Source‐
Name in a user display to distinguish be‐
tween different Condition instances.
M Information whether or not the alarm shall
be displayed.
This is set to true by default.
M The quality provides information about the
reliability of an alarm.
Possible values of SINUMERIK:
AlarmQuality.QUALITY_BAD = 0
AlarmQuality.QUALITY_GOOD =
192
AlarmQuality.QUALITY_UNCERTAIN
= 64
M LastSeverity provides the previous severity
of the ConditionBranch. Initially this Varia‐
ble contains a zero value; it will return a
value only after a severity change. The new
severity is supplied via the Severity Prop‐
erty which is inherited from the BaseEvent‐
Type.
M BranchId is Null for all Event Notifications
that relate to the current state of the Con‐
dition instance.
M The value of this Variable is set to null.
M The value of this Variable is set to null.
M Servers do not expose Condition instances
in the AddressSpace.
M Servers do not expose Condition instances
in the AddressSpace.
SINUMERIK Integrate for Engineering Access MyMachine / OPC UA
Configuration Manual, 12/2017, 6FC5397-1DP40-6BA1