KROHNE Summit 8800 Vol 3 - Manual (Page 18)

18 www.krohne.com 08/2013 - MA SUMMIT 8800 Vol3 R02 en
SUMMIT 8800 GENERAL INFORMATION 02
Totals
Totals for the streams and station.
Contents of this folder are stored in the non-volatile RAM and are protected using the battery.
Custom
User defined variables.
Allows calculations, made in a LUA script, to be used in a configuration.
For details, see volume 3.
2 .4 .2 Colour codes
With each parameter and option, there are corresponding coloured dots that represent the ac-
cess and status of the particular selection.
General ID tree
Red Dot Data is Read/Write and can be changed over Modbus.
Yellow Dot Data is Read-Only and cannot be changed over Modbus
Please note that it might be possible to change the values via the screen
90% of the data will be Read Only, but items such as Serial Gas Compositions, Time/Date, MF
are commonly written over Modbus.
NOTE: Although the ID may be read/write, the security setting determines whether the ID indeed
can be written.
Alarm Tree
The alarm tree is built of all the registers that hold alarm data. Alarm registers are 32-bit inte-
gers, where each bit represents a different alarm.
Red Dot Represents an accountable alarm visible on the alarm list.
Dark Blue Dot Represents a non-accountable alarm visible on the alarm list.
Orange Dot Represents a warning visible on the alarm list.
Light Blue Dot Represents a status alarm, not visible on the alarm list.
Black/Grey Dot Represents a hard- or software fault alarm visible on the alarm list.
An example of typical usage would be the General Alarm Register. This is a 32 bit register that
indicates up to 32 different alarms in the flow computer. This will contain Status Alarms, for ex-
ample, 1 bit will indicate if there is a Pressure alarm or not. If the Pressure Status bit is set the
user will know that there is a problem with the Pressure.
This should be sufficient information, however if it is not satisfactory, the user can look at the
Pressure alarm, this contains 32 different alarms relating to the Pressure measurement, these
would be Red Dots as they each can create an entry in the alarm list. By reading this register
the user can view exactly what is wrong with the Pressure measurement.
The Light Blue Dots are generally an OR of several other dots. By reading the General register
you can quickly see if the unit is healthy, more information can be provided by reading several
more registers associated with that parameter.