IMC CANSAS - Page 70

70 Operation
imc CANSAS Users Manual - Doc. Version 1.9 - 05.12.2014© 2014 imc Meßsysteme GmbH
Position in message
The message's position depends on the channel's position and on the bit counts of the channels
positioned further in front.
Starting byte: In which byte belonging to the message does the number begin? Byte 0 is the first
transmitted byte of the CAN-message. In an 8 byte message, then, the bytes 0...7 are available.
Start bit: At which bit in the Starting-byte does the number begin?
No. of bits: Number of bits for the channel. The number is determined by the channel's data type.
For signed and unsigned integers the number is 16 bits.
For floating point numbers it's 32.
For a digital bit, 1.
The bits proceed from the starting bit to the higher-index bytes.
Scaling
The message receiver must factor this value into the channel's signal values in order to obtain the input
range set.
ScaledValue = UnscaledValue * Factor + Offset