User`s guide

Return Format
The command returns a series of readings in Definite-Length Block format.
The syntax is a pound sign (#) followed by a non-zero digit representing the
number of digits in the decimal integer to follow. This digit is followed by a
decimal integer indicating the number of 8-bit data bytes to follow. This is
followed by a block of data containing the specified number of bytes. The
reading format is determined by the FORMat Subsystem commands.