libmodbus version libmodbus-3.4.1 OS and/or distribution OpenWRT CC compiled for mips Description Hi used function modbus_rtu_set_custom_rts(), for manage trasmition direction using a gpio of my HW. I insert this function in main modbus ...
MODBUS_API int modbus_rtu_set_serial_mode (modbus_t * ctx, int mode): 该函数用于设置串口为 MODBUS RTURS232或MODBUSRTU_RS485模式,此函数只适用于 Linux 操作系统下。 MODBUS_API int modbus_rtu_set_rts (modbus_t * ctx, int mode)。 MODBUS_API int modbus_rtu_set_custom_rts (modbus_t * ...
MODBUS_API int modbus_rtu_set_rts(modbus_t *ctx, int mode); MODBUS_API int modbus_rtu_get_rts(modbus_t *ctx); MODBUS_API int modbus_rtu_set_custom_rts(modbus_t *ctx, void (*set_rts) (modbus_t *ctx, int on)); MODBUS_API int modbus_rtu_set_rts_delay(modbus_t *ctx, int us...
MODBUS_API int modbus_rtu_set_rts (modbus_t * ctx, int mode)。 MODBUS_API int modbus_rtu_set_custom_rts (modbus_t * ctx, void ( * set_rts) (modbus_t * ctx, int on))。 MODBUS_API int modbus_rtu_set_rts_delay (modbus_t * ctx, int us)。 以上函数只适用于 Linux 操作系统下...
在RTU环境下获取设置RTS模式 int modbus_rtu_set_rts(modbus_t *ctx, int mode)(3.1.4版本补充) 自定义RTS实现 int modbus_rtu_set_custom_rts(modbus_t *ctx, void (set_rts) (modbus_t ctx, int on))(3.1.4版本补充) 获取RTU中当前RTS延迟 int modbus_rtu_get_rts_delay(modbus_t *ctx);(3.1...
libmodbus是一个遵循Modbus协议的库,可以使一个设备用来发送接收数据。可以支持多种网络通信:串口通信RTU或者网口通信TCP/IPv6等。 相关概念 Contexts The modbus_t context is an opaque structure containing all necessary information to establish a connection with other Modbus devices according to the selected ...
libmodbus是一个遵循Modbus协议的库,可以使一个设备用来发送接收数据。可以支持多种网络通信:串口通信RTU或者网口通信TCP/IPv6等。 相关概念 Contexts The modbus_t context is an opaque structure containing all necessary information to establish a connection with other Modbus devices according to the selected ...
/* Builds a RTU request header */ static int _modbus_rtu_build_request_basis(modbus_t *ctx, int function, int addr, int nb, uint8_t *req) { assert(ctx->slave != -1); req[0] = ctx->slave; req[1] = function;
if ( 0 == modbus_rtu_set_serial_mode(ctx, MODBUS_RTU_RS485)) printf("INFO :: RTU Serial Mode Set Successfully ...\n"); //modbus_rtu_set_rts(ctx, MODBUS_RTU_RTS_UP); if ( 0 == modbus_rtu_set_custom_rts(ctx, csetrts)) ...
- Implemented runtime configurable RTS delay by Jimmy Bergström. - Add an entry in libmodbus index page for modbus_rtu_set_custom_rts. - Add support for user defined RTS toggle function by Jimmy Bergström. - Added ILLEGAL_DATA_ADDRESS tests for modbus_write_register[|s]. ...