TP\TH\TG 触摸屏C 函数功能块 用户手册 无锡信捷电气股份有限公司 资料编号：HC 10 20120628 2.D 目 录 前言................................................................................................................................................... 1 1 函数功能块制作 ........................................................................................................................... 2 2 函数功能块说明 .......................................................................................................................... 4 2.1 书写方式 ............................................................................................................................ 4 2.2 函数类型 ............................................................................................................................ 4 2.3 预定义数据类型 ................................................................................................................ 5 2.4 预定义宏指令 .................................................................................................................... 6 2.5 系统函数 ............................................................................................................................ 6 2.5.1 Read/ Write .............................................................................................................. 6 2.5.2 Reads/Writes ............................................................................................................ 7 2.5.3 Enter/ Leave ............................................................................................................. 7 2.5.4 Send .......................................................................................................................... 7 2.5.5 Receive ..................................................................................................................... 8 2.5.6 Malloc ..................................
