Yokogawa YFGW410 - Manual (Page 185)

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IM 01W02D01-01EN
Part F Troubleshooting
This part briefly describes the troubleshooting procedure when a field wireless system error or
warning has occurred in a host system.
The host system refers to a DCS (Yokogawa CENTUM VP and other system), SCADA system,
Modbus/TCP-compatible monitor systems, or device management system (Yokogawa PRM and
other system).
The CENTUM VP not only imports the process values of devices composing the field wireless
system but also analyzes error information based on the health status of the process value or
status information of each device to display the analysis result on the operator window (HIS). For
details, see the Communication with Subsystems Using FIO user’s manual (IM 33K03L20-50E).
In other DCS, SCADA system, or Modbus/TCP-compatible monitor systems, you need to create
and operate an application to import the health status of the process value or status information
of each device as Modbus data like the process value and convert them to the error or warning
status in a host system and display the conversion result on the window.
In PRM, the status of the field wireless device can be monitored and displayed using the device
patrol function. For the setting and operation procedure, see the Plant Resource Manager Refer-
ence (IM 33Y05Q10-11E).
F1. Field Wireless System
This chapter shows the troubleshooting flow when a field wireless system error or warning was
detected in a host system or on the Monitor of the Field Wireless Management Console.
If such as an error or warning is explicitly isolated as a problem (input over-range, sensor failure,
disconnection, etc.) in the measurement section of the field wireless device using the display of a
host system, take the appropriate action, seeing the troubleshooting in the user’s manual of the
relevant device.
In the CENTUM VP, a wireless communication error, field wireless backbone communication er-
ror, or device error is notified by the IOP of the system alarm. The error code includes a commu-
nication-related comment, which allows you to identify a location at which an error was detected
in the communication path or device. For details, see the Communication with Subsystems Using
FIO user’s manual (IM 33K03L20-50E).
In other host systems, perform system engineering to embed the error detection mechanism us-
ing Device Status of each wireless system component, Process Data Status, and self-diagnosis
status (DIAG_STATUS) of the field wireless device; an error location can be identified in the
same way as for the above.
The following shows the troubleshooting flow of the field wireless system.