Simex SLE-73, Руководство пользователя

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User manual - COUNTER SLE-73
7.3.4. ”PrESCA” menu
This menu contains parameter which configure the prescalling parameters (recalculations
of counted pulses). This menu allows the user to set individual prescalers, and to scale the
counter in desired units. Available options:
“muL” - multiply coefficient , range -99999 do 999999, except 0,
“div”
- divide coefficient, range 1 do 999999, (this parameter defines the internal modulo
counter),
“oFFSEt” - offset coefficient, range: -99999 do 999999 (constant value added to the result to
move the zero point of the current scale),
“Point” - decimal point position.
Displayed result is calculated due to the expression:
W
=
L
m
×
"muL"
 
L
w
×
"muL"
"div"

"oFFSEt"
where: W - displayed result
L
m
- the internal main counter value
L
w
- the internal (modulo) precounter value
Parameter “div” can't be set to “000000”, entered value is controlled by firmware.
The precounter (modulo) and main counter are internal registers of the counter's
firmware and they contain not calculated (by mul and div parameters) numbers of pulses
delivered to the counting inputs {A} and {B}. The modulo counter contains the fractional part of
the result (ratio of
„div” parameter). Main counter contains the integer part of the result (not
recalculated). If parameter “
div
” is set to 1, then main counter contains the number of all
pulses delivered to counting inputs.
Firmware uses fixed point arithmetic (rounding down).
7.3.5. ”rS-485” menu
This menu is connected with RS-485 interface, and sets his properties:
”Addr” - this parameter defines the address of the device, accordingly to Modbus protocol.
It can be set in range from 0 to 199. If the value 0 is set then device, responds to
frames with address 255 (FFh).
”bAud”
- this parameter determines RS-485 interface baud rate. It can be set to one of
8 possible values:
”1.2” , ”2.4” , ”4.8”, ”9.6” , ”19.2” , ”38.4” , ”57.6” , ”115.2” ,
which respond to the baud rates of 1200, 2400, 4800, 9600, 19200, 38400,
57600 and 115200 bit/s respectively.
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