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D.6.0 How to drive a Psion based SMART Communicator
Familiarity with the Psion
The Psion is supplied with several manuals to described its function. The main keyboard functions that are
important are the yellow keys. Press “ON” and see the functions of the arrows to move the cursor around the
selections in the menu. Press “EXE” to see the Psion functions. Note that a short cut to selecting a menu
item is to press the key with the initial letter of the required selection – for example “O” switches the unit
“OFF”.
Note that if the “CALC” option is selected, the keyboard changes from the “Alphabet” marked
on the keys, to
the “numbers” and symbols marked
above the keys. The Psion selects the expected function required of the
keyboard. This function can be changed back by depressing the “SHIFT” key.
MOBREY Menu
If “MOBREY” is selected from the start up menu on the Psion, by pressing “EXE” the space available in the A
memory of the Psion is checked. If there is insufficient then a message is displayed and the program returns
to the main menu. Data, Note Pad or Diary files in A must be removed to allow the program to run. The
SMART Communicator then establishes whether the SMART interface unit is plugged in or not.
10:41
MOBREY Find Save
Diary Calc Time
Notes World Alarm
When the SMART interface is not connected, the Communicator does not look for an instrument – it offers
OFF-LINE programming.
When the SMART interface is connected to the Psion, on selecting the “MOBREY” menu item the programme
seeks an instrument that is expected to be functioning on a 4-20mA loop (the loop that is expected to be
connected to the SMART interface cables).
MOBREY V3.1
SEEKING INSTRUMENT
PLEASE WAIT
If the loop is not powered, or the interface cables are not properly connected to the loop, or the loop
impedance/resistance values are incorrect, the unit will fail to find the control unit.
NO SINGLE LOOP
INSTRUMENT CONNECTED
RETRY (Y)es or (N)o
Note that if the MSM400 control unit is programmed to respond as a numbered sensor on a multidrop loop, it
will also fail to communicate to the SMART communicator at this point.