MODBUS_API int modbus_set_byte_timeout(modbus_t *ctx, uint32_t to_sec, uint32_t to_usec); //获取服务端等待客户端请求超时时间 MODBUS_API int modbus_get_indication_timeout(modbus_t *ctx, uint32_t *to_sec, uint32_t *to_usec); //设置服务端等待客户端请求超时时间 MODBUS_API int mo...
struct timeval byte_timeout; 接收一个字节的超时时间,默认是0.5S struct timeval indication_timeout; 等待请求的超时时间 const modbus_backend_t *backend; 硬件传输层的结构体 void *backend_data; 硬件传输层的私有数据 后端modbus_backend_t结构体的成员含义如下: 成员 含义 unsigned int backend_type; 后端...
modbus_set_byte_timeout(); modbus_get_response_timeout(); modbus_set_response_timeout(); modbus_get_indication_timeout(); modbus_set_indication_timeout(); 5)错误恢复模式 modbus_set_error_recovery(); 6)设置/获取内部socket modbus_set_socket(); modbus_get_socket(); 7)头部信息 modbus_get...
MODBUS_API int modbus_set_byte_timeout(modbus_t *ctx, uint32_t to_sec, uint32_t to_usec); //获取服务端等待客户端请求超时时间 MODBUS_API int modbus_get_indication_timeout(modbus_t *ctx, uint32_t *to_sec, uint32_t *to_usec); //设置服务端等待客户端请求超时时间 MODBUS_API int mo...
MODBUS_API int modbus_set_byte_timeout (modbus_t * ctx, uint32_t * to_sec,uint32_t * to_usec); 用于获取或设置连续字节之间的超时时间,注意时间单位分别是秒和微秒。 MODBUS_API intmodbus_get_header_length (modbus_t * ctx); 获取报文头长度。
/* The slave raises a timeout on a confirmation to ignore because if an * indication for another slave is received, a confirmation must follow */ /* Send a pair of indication/confirmation to the slave with a different * slave ID to simulate a communication on a RS485 bus. At first, ...
modbus_set_indication_timeout(ctx, 1, 0); socket = modbus_tcp_pi_listen(ctx, 1); fcntl(socket, F_SETFL, fcntl(socket, F_GETFL, 0) | O_NONBLOCK); I realize this might not be the most efficient use of my thread, but it works for now. Regards, Ksawery 👍 1 Contributor pboet...
Waiting for an indication... ** UNIT TESTING ** 1/1 No response timeout modification on connect: OK TEST WRITE/READ: [00][01][00][00][00][06][FF][05][01][30][FF][00] <00><01><00><00><00><06><05><01><30><00> ...
instead all bytes are sent as fast as possible and a response or an indication is considered complete when all expected characters have been received. This implementation offers very fast communication but you must take care to set a response timeout of slaves less than response timeout of maste...
此外,当有多个从站时,需要仔细设置 response timeout。这是摘录libmodbus v3.1.2帮助文档里的一段话 The libmodbus implementation of RTU isn’t time based as stated in original Modbus specification, instead all bytes are sent as fast as possible and a response or an indication is considered complete...