Instruction manual
COMPUX WRITE ONLY REGISTERS
When a Port Initialization configures a BIC-II product port to suit a CompuScale or CompuFlo series
integrator, several write only registers are established. Write the integrator I.D. number to the appropriate
register.
NAME NUMBER DESCRIPTION
MT50 40001 request Port 1 Rate data.
MT51
*
40002 request Port 1 Load data.
MT52
*
40003 request Port 1 Speed data.
MT53 40004 request Port 1 Total data.
*
applies to CompuScale series integrators only.
COMPUX READ ONLY REGISTERS
When a Port Initialization configures a BIC-II product port to suit an integrator, the product data registers (read
only) are assigned as follows.
Status Registers
CompuX status registers (40005 for Port 1) indicate the validity of the Reading register data. Poll this register
after each data request. If the value is 0, read the Reading register. If the value is 1, wait about 1 second and
read the status register again for a value of 0. If the value is 2, check that the integrator power is on, and that
the correct I.D. # was used before requesting data again. If the value is greater than 2, send the data
request again.
0 = data is valid
1 = data has not yet returned from the integrator.
2 = data request was returned by the integrator.
3 = reading data returned from the integrator is incorrect.
4 = units data returned from the integrator is incorrect.
Reading Registers
CompuX Reading registers (40006 to 40009 for Port 1) contain the measurement display value. Check the
associated status register before converting the Reading register values to a floating point decimal (FPD)
value. The decimal equivalent of the register values are used for the following conversion formula.
FPD = (Register 1 x 1000) + Register 2 + (
Register 3) + (Register 4)
10000 1000000
The range of FPD values possible is -99,999,999.99999999 to 99,999,999.99999999
Units Registers
CompuX Units registers (40010 for Port 1) contain the units of measure associated with a Total value. Check
the associated status register before reading the Units register.
0 = associated value is not a Total.
1 = t (metric tonnes)
2 = kg (Kilograms)
3 = LT (long tons)
4 = ST (short tons)
5 = lb (pounds)
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