Query: modbus_reply
OS: debian
Section: 3
Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar
MODBUS_REPLY(3) Libmodbus Manual MODBUS_REPLY(3)NAMEmodbus_reply - send a reponse to the received requestSYNOPSIS*int modbus_reply(modbus_t *ctx, const uint8_t *req, int req_length, modbus_mapping_t *mb_mapping);DESCRIPTIONThe modbus_reply() function shall send a response to received request. The request req given in argument is analyzed, a response is then built and sent by using the information of the modbus context ctx. If the request indicates to read or write a value the operation will done in the modbus mapping mb_mapping according to the type of the manipulated data. If an error occurs, an exception response will be sent. This function is designed for Modbus server.RETURN VALUEThe modbus_reply() function shall return the length of the response sent if successful. Otherwise it shall return -1 and set errno.ERRORSEMBMDATA Sending has failed See also the errors returned by the syscall used to send the response (eg. send or write).SEE ALSOmodbus_reply_exception(3) libmodbus(7)AUTHORSThe libmodbus documentation was written by Stephane Raimbault <stephane.raimbault@gmail.com[1]>NOTES1. stephane.raimbault@gmail.com mailto:stephane.raimbault@gmail.com libmodbus 3.0.3 05/26/2012 MODBUS_REPLY(3)
Related Man Pages |
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modbus_read_registers(3) - debian |
modbus_get_response_timeout(3) - debian |
modbus_mapping_new(3) - debian |
modbus_set_response_timeout(3) - debian |
modbus_set_slave(3) - debian |
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