5.4 Alarms
5.4.1 Overview
Any OPC UA client supporting Alarms & Conditions connected to the SINUMERIK OPC UA
server can subscribe to alarms to get the notifications of alarms.
All OPC UA Clients that have subscribed for SINUMERIK alarms will be provided with an alarm
as soon as it becomes active. Also if the alarm becomes inactive, the status of the
corresponding alarm/s will be updated automatically.
Alarms and Conditions support subscription of all the pending and active alarms of the
SINUMERIK system. Part program messages are not supported as part of Alarms and
Conditions, but can be received using data access. The OPC UA Server provides all alarms
that will be provided by the SINUMERIK AlarmService:
● HMI alarms
● NCK alarms including drive alarms
● Diagnostic buffer alarms
● PLC alarms (FC10)
● Alarm_S(Q) alarms (SFC17/18, PDiag, HiGraph, S7-Graph) with results of criteria analysis.
All Alarms are delivered in English language.
The SINUMERIK Alarm object is of the "CNCAlarmType" which is defined in the Companion
Specification "OPC UA Information Model for CNC Systems (http://opcfoundation.org/UA/
CNC/)".
Functionality
5.4 Alarms
SINUMERIK Integrate for Engineering Access MyMachine / OPC UA
Configuration Manual, 12/2017, 6FC5397-1DP40-6BA1 45
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