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5.0 PROGRAMMING
5.1 The operation of the MSM400 is controlled by means of programmable parameters. These are stored in
memory and may be set by the user to define variables such as calibration scale factors, set points, and modes of
operation. The parameters are accessed using the keypad, by means of a menu system as shown below. (Parameters
may also be edited remotely using the HART protocol. See Appendix N). For a full listing of the menu structure refer
to Appendix A1.
5.2 Navigation in the menu system
From the main display, pressing any key except ESC will enter the menu system. The top level menu contains the list
of available menu items:
TOGGLE RUN
CALIBRATION
SETUP
MONITOR
To move up and down the list, use the UP and DOWN arrows until the required menu item is highlighted, then use
the ENT or RIGHT arrow key to select it. The presence of additional menu items off the screen is indicated by up
and down arrows on the right hand side of the display
The next level of the menu is then displayed and the required option can again be selected as above.
Continue until the required parameter is displayed and select it using the ENT key. (Note that menu groups are in
upper case letters, parameters are in upper and lower case.)
The parameter may now be modified. Numeric values are edited one digit at a time, the LEFT and RIGHT arrows
select each digit by highlighting them and the UP and DOWN arrows increment and decrement each digit. Some
parameters e.g. “PV Units” are in the form of a list. These are edited in a similar way, selecting with the RIGHT arrow
and using the UP and DOWN arrows to scroll through the list
When the displayed value is correct, press the ENT key to store it.
Scrolling
When a parameter is displayed but no digit is selected, the UP and DOWN arrow keys will scroll to the next parameter
in numeric order. This provides an alternative method of accessing parameters without using the menu facility.
Example: Relay 1 set point programming.
To programme the relay, follow the simple steps shown below;
1. To alter any menu option the padlock icon in the top left of the display must be open. This is done using the
TOGGLE RUN menu.
2. To access TOGGLE RUN from the normal display, press any key except ESC to display the main menu. The
down arrow (↓) shown on the screen indicates that there are further options. (including MONITOR)
MAIN MENU 0
TOGGLE RUN 0
CALIBRATION ↓
SETUP