Annex A
Page A - 16
HA243820
Issue 5 Mar 98
MODEL 346 INSTALLATION AND OPERATION MANUAL
A7.0 TOTALISER CONFIGURATION
DISPLAY
SCROLLABLE VALUES
DESCRIPTION OF PARAMETER OR FUNCTION
Type
Off
Totaliser inoperative
Continuous
Totaliser increments until reset by overflow, manual reset, or action
equation.
Preset down
Totaliser resets to a preset figure, then counts to zero.
Preset up
Totaliser resets to zero, then counts to a preset figure.
Note...
Both preset types output an internal trigger which can be used (amongst other things) to reset the totaliser.
Source
Ch 1 to 9; Contact inputs 1 to 6
Allows the totaliser input source to be defined as any channel or any
event input contact closure.
Factor
None
Allows entry of a scaling factor. See section 5.2 of this manual for
details.
Units
Text entry
Allows the entry of a five-character text string as a units-of-measure-
ment for the totaliser value. See section 4.4 of this manual for further
details.
Preset
None
This display appears only if 'preset up' or 'preset down' is selected as
totaliser type. Allows the entry of either a high or a low preset value for
the totaliser.
Low Cutoff
None
Allows a minimum count level to be established. For input signals
below this value, the totaliser will not be incremented.
Hi Cutoff
None
Allows a maximum count level to be established. For input signals
above this level, the totaliser will not be incremented. The default value
is the channel's Overrange value (full scale + 10%).
Resettable
Yes, No
If NO is selected, the totaliser will not reset under any reset equation
or operator action conditions.
If YES is selected, the totaliser will respond to all reset stimuli from
reset equation or operator action.
Rset Eq
CI1 to CI6, TT1 to TT6, A11 to A94 The up, down and side arrow keys are used to scroll through the avail-
GLA, KEY, INA, LOG, TM1 to TM4 able triggers for resetting the totaliser. See section 3.4 of the manual
for full details. Once the action equation entries have been made, the
Enter key is used once to confirm them, and the Clear key used to
return to the menu.
Cntr. Out
On, Off
Used to switch the counter on or off. The scaling described below can
be used to reduce the totaliser output counter frequency if required. It
is this output which can be used as the 'Tot. N' source for output re-
lays.
Out. Fact?
None
Allows the division factor to be entered.
Tot Desc.
Text entry
Allows a descriptor for the totaliser to be entered. See section 4.4 of
this manual for details of text entry.
Table A7.0 Totaliser configuration parameters