莱卡全站仪接口文档 1.5 1GEOCOM 5 1.1INTRODUCTION 5 1.2TPS1200 SYSTEM SOFTWARE 5 1.3PRINCIPLES OF GEOCOM OPERATION 6 2GENERAL CONCEPTS OF USING GEOCOM 7 2.1INTRODUCTION 7 2.2GENERAL CONCEPT OF OPERATION 7 2.3ASCII PROTOCOL 7 2.4FUNCTION CALL PROTOCOL - C/C++ 8