User’s Manual BDF-xx-TF
FEMA ELECTRÓNICA - Page 6
Programming the instrument
The BDF Ratemeter instruments are configured by program-
ming codes that activate internal «scale factors», decimal
points, and other elements which scale the signal reading
on display.
The programming of these codes is done through the 15 pin
SUB-D connector at the rear side of the instrument. A «KBD
Programming Keyboard» is needed, or the connections
shown in Figure 1 need to be set-up..
Buttons «1» to «6» introduce the numerical characters 1, 2,
3, 4, 5 and 6 on display, button «#» executes «ENTER» on
the displayed code. Button «*» adds negative sign in some
codes.
Note .-
When KBD (or contacts indicated in Figure 1) are
connected to the BDF, the point placed on top of the negative
sign will light. This led must be «on» during the reprogram-
ming of the unit (if the led is not lightning, but the led below
the negative sign lights, then press «*» to switch leds).
Note
.- When KBD (or contacts indicated in Figure 1) are
connected to the BDF Ratemeter with 4 digits, the 2 small 7
segment displays on top left part will light. These digits are
needed to programm some codes which are 6 digit codes.
Figure 1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Pin 1 common
Pin 9
button «*»
Pin 2
button «6»
Pin 10
button «5»
Pin 3
button «4»
Pin 11
button «3»
Pin 4
button «2»
Pin 12
button «1»
Pin 5
button «# (ENTER)»
Pins 6, 13 and 14 shortcircuited
Pin 7, 8 and 15 leave open
Function of the programming terminal pins
KBD programming keyboard
Programming codes
The programming codes are made of 2 digits identifying the
code, and a third digit identifying the value assigned to the
code.
Code «41» with value «1» is represented as «41 1#». Button
«#» acts as a validation of the code and value entered. If this
button is not pressed, the unit will not validate the new value.
EXAMPLE
Introducing code «41 1#»
Press 4 Number 4 appears on display, to the left
Press 1 Number 1 appears on display, to the left
The current value for code 41 appears to
the right (it can be 1 or 2)
Press 2 Number 2 appears on display, to the right
replacing the previous value
Press # Validates the code and the value entered
(in this case 41 1)
Note
.- After 6 seconds without introducing data, the instru-
ment will cancel the programming code without validation.
Note
.- Codes «1», «2» and «3» are special codes composed
by only 1 digit. The value is a 6 digit numerical value and will
load on display as soon as the code is pressed. The way to
modify this value is to modify each digit value independently
by pressing 1 to 6 and then # to validate the whole.
