/*tcp数据体初始化*/ if(NULL == (ts = modbus_tcp(MODBUS_MASTER))) { printf("modbus_tcp_master create error.\n"); return -MODBUS_RT_ERROR; } /*指定slave自身的ip和端口号*/ if(MODBUS_RT_EOK != (ret = modbus_tcp_set_net(ts,
when I test modbus rtu slave eample in esp32s3, I found the float have stronge problem. I set the holding_reg_params.holding_data0 = 1000.213 in code, it is a float nubmer, then I read this number use modbus poll by computer but I get the nubmer is 1003.36. and I test a ...
ESP32-S3-USB-OTG 是一款侧重于 USB-OTG 功能验证和应用开发的开发板,基于 ESP32-S3 SoC,支持 Wi-Fi 和 BLE 5.0 无线功能,支持 USB 主机和 USB 从机功能。可用于开发无线存储设备,Wi-Fi 网卡,LTE MiFi,多媒体设备,虚拟键鼠等应用。艾尔赛科技官网:http://www.lctech
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# Modbus configuration # CONFIG_FMB_COMM_MODE_TCP_EN=y CONFIG_FMB_TCP_PORT_DEFAULT=502 CONFIG_FMB_TCP_PORT_MAX_CONN=5 CONFIG_FMB_TCP_CONNECTION_TOUT_SEC=20 CONFIG_FMB_COMM_MODE_RTU_EN=y CONFIG_FMB_COMM_MODE_ASCII_EN=y CONFIG_FMB_MASTER_TIMEOUT_MS_RESPOND=150 CONFIG_FMB...
Attention: The 4-inch screen relay and I2S audio share IO ports, namely IO1 IO2、IO40, If audio is required, the 0 ohm resistors R25, R26, and R27 should be moved to R21 R22、R23。 The ESP32 installation package must not be lower than ...
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# Modbus configuration # CONFIG_FMB_COMM_MODE_TCP_EN=y CONFIG_FMB_TCP_PORT_DEFAULT=502 CONFIG_FMB_TCP_PORT_MAX_CONN=5 CONFIG_FMB_TCP_CONNECTION_TOUT_SEC=20 CONFIG_FMB_COMM_MODE_RTU_EN=y CONFIG_FMB_COMM_MODE_ASCII_EN=y CONFIG_FMB_MASTER_TIMEOUT_MS_RESPOND=150 CONFIG_FMB...
# Modbus configuration # CONFIG_FMB_COMM_MODE_TCP_EN=y CONFIG_FMB_TCP_PORT_DEFAULT=502 CONFIG_FMB_TCP_PORT_MAX_CONN=5 CONFIG_FMB_TCP_CONNECTION_TOUT_SEC=20 CONFIG_FMB_COMM_MODE_RTU_EN=y CONFIG_FMB_COMM_MODE_ASCII_EN=y CONFIG_FMB_MASTER_TIMEOUT_MS_RESPOND=150 CONFIG_FMB...