57 lines
1.4 KiB
Go
57 lines
1.4 KiB
Go
package main
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import (
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"fmt"
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"time"
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"joylink.club/iot/modbus"
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)
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func main() {
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cli, err := modbus.NewClient("tcp://localhost:502")
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if err != nil {
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panic(err)
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}
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cli.Start()
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// vb := false
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for i := 0; i < 10; i++ {
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time.Sleep(time.Second * 2)
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// read a single 16-bit holding register at address 100
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if i%2 == 0 {
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// vb = !vb
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// data := []bool{vb, !vb, vb, !vb, vb, !vb, vb, !vb}
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// err := cli.WriteCoils(0, data)
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// if err != nil {
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// // error out
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// fmt.Printf("第%d次写错误: %s\n", i, err)
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// } else {
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// fmt.Printf("第%d次写成功, value: %v\n", i, vb)
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// }
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data := []uint16{uint16(i + 1), uint16(i + 2), uint16(i + 3), uint16(i + 4), uint16(i + 5), uint16(i + 6), uint16(i + 7), uint16(i + 8)}
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err := cli.WriteRegisters(0, data)
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if err != nil {
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// error out
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fmt.Printf("第%d次写错误: %s\n", i, err)
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} else {
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fmt.Printf("第%d次写成功, value: %v\n", i, data)
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}
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} else {
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// bs, err := cli.ReadCoil(0, 10)
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// if err != nil {
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// // error out
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// fmt.Printf("第%d次读错误: %s\n", i, err)
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// } else {
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// fmt.Printf("第%d次读成功, value: %v\n", i, bs)
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// }
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bs, err := cli.ReadHoldingRegister(0, 10)
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if err != nil {
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// error out
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fmt.Printf("第%d次读错误: %s\n", i, err)
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} else {
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fmt.Printf("第%d次读成功, value: %v\n", i, bs)
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}
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}
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}
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}
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