Interpretation Of Alarm Data; Identifier; Above Setpoint; Above Hysteresis - Electro Industries Shark 200 Installation & Operation Manual

• Value: Depends on the Direction:
• If the record is "Going out of limit," this is the value of the limit when the "Out"
condition occurred.
• If the record is "Coming back into limit," this is the "worst" value of the limit
during the period of being "out": for High (above) limits, this is the highest value
during the "out" period; for Low (below) limits, this is the lowest value during
the "out" period.
Byte 0 1
Value

Identifier

Interpretation of Alarm Data:

To interpret the data from the alarm records, you need the limit data from the
Programmable Settings [0x754B, 40 registers].
There are 8 limits, each with an Above Setpoint, and a Below Setpoint. Each setpoint
also has a threshold (hysteresis), which is the value at which the limit returns "into"
limit after the setpoint has been exceeded. This prevents "babbling" limits, which can
be caused by the limit value fluttering over the setpoint, causing it to go in and out of
limit continuously.
• Identifier: The first modbus register of the value that is being watched by this limit.
While any modbus register is valid, only values that can have a Full Scale will be
used by the Shark® 200 meter.
• Above Setpoint: The percent of the Full Scale above which the value for this limit
will be considered "out."
• Valid in the range of -200.0% to +200.0%
• Stored as an integer with 0.1 resolution. (Multiply % by 10 to get the integer,
divide integer by 10 to get %. For example, 105.2% = 1052.)
• Above Hysteresis: The percent of the Full Scale below which the limit will return
"into" limit, if it is out. If this value is above the Above Setpoint, this Above limit will
be disabled.
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Above Setpoint

Above Hyst.
Doc
B: Modbus Map and Retrieving Logs
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Below Setpoint
#
E149701
8 9
Below Hyst.
B-35