Fairbanks FB2550 SERIES - Manual (Page 161)

Section 9 Network Application Configuration
07/2012 161 51254 Rev. 3
C. SOFTWARE SPECIFICATIONS, CONTINUED
NOTE WEIGHT VALUES sent over the Serial Channel will be represented in the
field bus registers based on the settings of bits 14 and 15 in Status Word 0 .
– If the data is set to be a 16 bit or 32 bit integer, then the register value will
contain the integer value and the host must multiply this by the scale factor to
get the actual weight.
– If it is set to be a 16 bit integer, and the integer value is greater then 65535, a
value of 0 is placed in the register.
– If the data is set to be FLOATING POINT , then the gateway will multiply
the integer value received by the scale factor, and place the resulting 32 bit
floating point value in the register.
▪ In this case the host does not use the scale factor to interpret the value.
INPUT DATA FORMAT FROM GATEWAY
The Gateway will send a string to the Serial Port reflecting data from the field bus.
•
The following is the definition of the serial string for one (1) scale.
– The scale ID in the field bus register for Command word 0 for a scale must be
set to the correct value (1-4) before data for that scale will be sent over the
serial channel.
– If the scale ID is set to the correct value, any time any data for this scale
changes the data will be sent out the serial channel.
– Command word data is sent as binary values MSB first over the serial
channel.
– Weight data is sent as six (6) characters representing a six (6) digit decimal
value ( 000000 – 999999 ).
– This decimal value represents the weight multiplied by the scale factor listed in
command/status word 1 bits 0-2 .
– The serial string is a fixed length of 105 bytes.