强大的Modbus功能,包含Modbus RTU /Modbus TCP/IP,能快速有效地获取设备仪表数据,支持VC,VB,VC#,VF#,BCB,DEPHI等开发,内含示例源码!
01: Read coil status 读线圈状态
02: Read input status 读输入状态
03: Read holding register读保持寄存器
04: Read input registers 读输入寄存器
05: Force single coil 强制单线圈
06: Preset single register 预置单寄存器
15: Force multiple coils 强制多线圈
16: Preset multiple registers 预置多寄存器
17: Report slave ID 报告从设备ID
22: Mask write register 屏蔽写寄存器
23: Read/Write registers 读/写寄存器
1