PLC Sub-Device Connectivity-TuyaOS-Tuya Developer
User Guide for tuya models including: PLC Gateway Development Framework Software, Gateway Development Framework Software, Development Framework Software, Framework Software
PLC Sub-Device Connectivity-TuyaOS-Tuya Developer
File Info : application/pdf, 6 Pages, 52.08KB
DocumentDocumentPLC Sub-Device Connectivity
Version: 20250317
Online Version
Contents Contents 1. Background information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2. Development guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.1. Configuration description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.2. Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
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1Background information Power Line Communication (PLC) sub-device connectivity is designed to help you easily develop PLC gateways. Tuya's hardware and software-integrated solution provides PLC module and software implementation, allowing you to build a PLC gateway with no code and connect to PLC sub-devices in the Tuya ecosystem. This topic describes how to use the PLC features with the TuyaOS Gateway Development Framework.
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1. Background information
1Background information
Developing a PLC gateway has a high barrier to entry and a long development cycle. Tuya's hardware and software-integrated solution makes complicated gateway development simple. Even if you do not have any PLC knowledge, you can build a PLC gateway cost-effectively. Connect your hardware to Tuya's PLC module through the serial port and enable PLC features in the software. Then, your product becomes PLC-capable and can connect to Tuya-enabled sub-devices.
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2. Development guide
2Development guide
This section describes how to enable PLC features with the TuyaOS Gateway Development Framework by making API calls. Two interfaces are used to enable PLC features: PLC initialization tuya_plc_svc_init and PLC startup tuya_plc_svc_start . They have the same parameters in JSON used for configurations.
2.1. Configuration description
Fields in the JSON data: Field
dev_name cts
baud_rate
Description Specifies the serial port number. Specifies whether to enable hardware
flow control. Valid values:
·
1 : Enable
·
0 : Disable Whether to enable
hardware flow control depends on
the PLC module you use. The baud rate for serial
communication between the PLC
module and the gateway's
microcontroller chip. Set the baud rate
according to the requirements of the
PLC module you use.
2.2. Example
1 // ...
2 #include "user_plc_svc.h"
3 int main(int argc, char **argv)
4{
5 ty_cJSON *app_cfg = ty_cJSON_CreateObject();
6
if (app_cfg == NULL) {
7
return OPRT_CJSON_GET_ERR;
8
}
9
ty_cJSON_AddStringToObject(app_cfg, "storage_path", "./");
10
ty_cJSON_AddStringToObject(app_cfg, "cache_path", "/tmp/");
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32 }
// Set a storage path TUYA_CALL_ERR_RETURN(tuya_set_config(app_cfg));
ty_cJSON *plc_cfg = ty_cJSON_CreateObject(); if (plc_cfg == NULL) {
return OPRT_CJSON_GET_ERR; } ty_cJSON_AddStringToObject(plc_cfg, "dev_name", "/dev/ttyS2"); ty_cJSON_AddNumberToObject(plc_cfg, "cts", 1); ty_cJSON_AddNumberToObject(plc_cfg, "baud_rate", 921600);
// Initialize the PLC service TUYA_CALL_ERR_RETURN(tuya_plc_svc_init(plc_cfg));
// Start the PLC service TUYA_CALL_ERR_RETURN(tuya_plc_svc_start(plc_cfg));
// ...
return 0;
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