资源详细信息
FreeModbus 英文资料 - 资源详细说明
If register should be written or read.
This value is passed to the calback functions which support either reading or writing register values. Writing means that the application registers should be updated and reading means that the modbus protocol stack needs to know the current register values.
See also: eMBRegHoldingCB(), eMBRegCoilsCB(), eMBRegDiscreteCB() and eMBReglnputCB().
Enumeration values: MB_REG_READ Read register values and pass to protocol stack.
MB_REG_WRITE Update register values.
Note: Note all ports implement this function.A port which wants to get an callback must define the macro MB_PORT_HAS_CLOSE to 1.
Returns: If the resources where released it return eMBErrorCode:: MB_ENOERR. If the protocol stack is not in the disabled state it returns eMBErrorCode:: MB_EILLSTATE.
Examples: LINUX/demo.c, MCF5235TCP/demo.c, STR71XTCP/demo.c, WIN32/demo. cpp, and WIN32TCP/
demo. cpp.
his function disables processing of Modbus frames.
Returns: If the protocol stack has been disabled
立即下载 FreeModbus 英文资料
提示：下载后请用压缩软件解压，推荐使用 WinRAR 或 7-Zip
下载说明与使用指南
下载说明
- 本资源需消耗 2积分
- 24小时内重复下载不扣分
- 支持断点续传功能
- 资源永久有效可用
使用说明
- 下载后使用解压软件解压
- 推荐使用 WinRAR 或 7-Zip
- 如有密码请查看资源说明
- 解压后即可正常使用
积分获取方式
- 上传优质资源获得积分
- 每日签到免费领取积分
- 邀请好友注册获得奖励
- 查看详情 →