B2. system maintenance, B2.1 alarm, B2.1 – Yokogawa YFGW710 User Manual
Page 112: B2-1, Nerrors that can be detected, Ntypes of alarms
B2-1
IM 01W01F01-01EN
B2. System Maintenance
This section describes the detection of field wireless system errors occurring during plant opera-
tions and the troubleshooting task for recovery.
B2.1 Alarm
Errors occurring in the part related to the field wireless network are detected by each of the com-
ponents and notified as an alarm.
n
Errors that can be detected
The following errors can be detected.
• Ethernet routing error between the control station and YFGW710
• YFGW710 error
• Wireless routing error between YFGW710 and field wireless device
• Field wireless device error
n
Types of alarms
Detected errors are notified to the control system as a process alarm and system alarm.
There are errors that are notified to PRM as a device error.
Error Alarm type
Process alarm System alarm
Device alarm
Routing error between control station and YFGW710
○
○
YFGW710 error
○
○
Routing error between YFGW710 and device
○
○
Device error
○
○
○
○: The alarm in question is notified.
No mark: The alarm in question is not notified.