Differences
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sdk:scripts:modbus-tcp-rtu-gateway [2022/09/05 12:07] schmitt |
sdk:scripts:modbus-tcp-rtu-gateway [2022/11/08 07:48] (current) klueppel |
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| Line 7: | Line 7: | ||
| DEV = sprintf("SERIAL%d", (DEVIDX + 1)); | DEV = sprintf("SERIAL%d", (DEVIDX + 1)); | ||
| TCP_PORT = 1502; | TCP_PORT = 1502; | ||
| + | DEBUG = 0; | ||
| + | |||
| + | |||
| /* check serial port config */ | /* check serial port config */ | ||
| Line 16: | Line 19: | ||
| /* set attributes */ | /* set attributes */ | ||
| - | ret = nb_serial_setattr(DEV, 19200, 8, 1, 0, 0); | + | ret = nb_serial_setattr(DEV, 115200, 8, 1, 0, 0); |
| if (ret != 0) { | if (ret != 0) { | ||
| nb_syslog("Could not set serial attributes: %d", ret); | nb_syslog("Could not set serial attributes: %d", ret); | ||
| Line 58: | Line 61: | ||
| exit(1); | exit(1); | ||
| } | } | ||
| + | if (DEBUG == 1) { | ||
| + | nb_modbus_set_debug(serial_fd, true); | ||
| + | } | ||
| printf("Listening for connections on port %d\n", TCP_PORT); | printf("Listening for connections on port %d\n", TCP_PORT); | ||
| + | |||
| tcp_client = -1; | tcp_client = -1; | ||
| registered = 0; | registered = 0; | ||
| + | |||
| while (1) { | while (1) { | ||
| Line 71: | Line 78: | ||
| sleep(1); | sleep(1); | ||
| continue; | continue; | ||
| - | } | + | } else { |
| + | if (DEBUG == 1) { | ||
| + | nb_modbus_set_debug(tcp_client, true); | ||
| + | } | ||
| + | } | ||
| } | } | ||
| Line 100: | Line 111: | ||
| nb_syslog("Unable to extract payload (%s)", nb_modbus_last_error()); | nb_syslog("Unable to extract payload (%s)", nb_modbus_last_error()); | ||
| } else { | } else { | ||
| + | /* Modbus TCP - RTU must set the slave id */ | ||
| + | ret = nb_modbus_set_slave (serial_fd, payload[0]); | ||
| + | if (ret > 0) { | ||
| + | nb_syslog("Unable to set modbus slave id"); | ||
| + | break; | ||
| + | } | ||
| + | |||
| response = nb_modbus_send_raw(serial_fd, payload); | response = nb_modbus_send_raw(serial_fd, payload); | ||
| if (is_void(response)) { | if (is_void(response)) { | ||