The communication between the ground computer and the pulsed neutron multi-parameter spectrum instrument in well logging
i.e. Atlas-Dress 3700-2727 C/O well logging instrument
is studied. A data acquisition system based on the microprocessor 80C196 is designed. The 80C196 can encode as well as decode the Manchester code by means of software. Furthermore
the system has a diagnostic function for checking the transmission performance.