99 lines
3.9 KiB
C#
99 lines
3.9 KiB
C#
using System.IO.Ports;
|
|
using System.Threading;
|
|
using System.Threading.Tasks;
|
|
|
|
namespace Modbus.Net.Siemens
|
|
{
|
|
/// <summary>
|
|
/// 西门子Ppi协议连接器
|
|
/// </summary>
|
|
public class SiemensPpiProtocalLinker : ComProtocalLinker
|
|
{
|
|
/// <summary>
|
|
/// 构造函数
|
|
/// </summary>
|
|
/// <param name="com">串口地址</param>
|
|
/// <param name="slaveAddress">从站号</param>
|
|
public SiemensPpiProtocalLinker(string com, int slaveAddress)
|
|
: base(com, 9600, Parity.Even, StopBits.One, 8, slaveAddress)
|
|
{
|
|
}
|
|
|
|
/// <summary>
|
|
/// 发送协议内容并接收返回
|
|
/// </summary>
|
|
/// <param name="content">发送的报文</param>
|
|
/// <returns>接收的报文</returns>
|
|
public override async Task<byte[]> SendReceiveAsync(byte[] content)
|
|
{
|
|
var extBytes = BytesExtend(content);
|
|
if (extBytes[6] == 0x7c)
|
|
{
|
|
var inputStruct2 = new ComConfirmMessageSiemensInputStruct(content[4], content[5]);
|
|
var receiveBytes2 =
|
|
await SendReceiveWithoutExtAndDecAsync(
|
|
new ComConfirmMessageSiemensProtocal().Format(inputStruct2));
|
|
}
|
|
var receiveBytes = await SendReceiveWithoutExtAndDecAsync(extBytes);
|
|
if (content.Length > 6 && receiveBytes.Length == 1 && receiveBytes[0] == 0xe5)
|
|
{
|
|
var inputStruct2 = new ComConfirmMessageSiemensInputStruct(content[4], content[5]);
|
|
var receiveBytes2 =
|
|
await SendReceiveWithoutExtAndDecAsync(
|
|
new ComConfirmMessageSiemensProtocal().Format(inputStruct2));
|
|
return BytesDecact(receiveBytes2);
|
|
}
|
|
return BytesDecact(receiveBytes);
|
|
}
|
|
|
|
/// <summary>
|
|
/// 发送协议内容并接收返回，不进行协议扩展和收缩
|
|
/// </summary>
|
|
/// <param name="content">发送的报文</param>
|
|
/// <returns>接收的报文</returns>
|
|
public override async Task<byte[]> SendReceiveWithoutExtAndDecAsync(byte[] content)
|
|
{
|
|
var ans = await base.SendReceiveWithoutExtAndDecAsync(content);
|
|
while (ans.Length == 1 && ans[0] == 0xf9)
|
|
{
|
|
Thread.Sleep(500);
|
|
if (content.Length <= 6)
|
|
{
|
|
var inputStruct2 = new ComConfirmMessageSiemensInputStruct(content[1], content[2]);
|
|
ans =
|
|
await SendReceiveWithoutExtAndDecAsync(
|
|
new ComConfirmMessageSiemensProtocal().Format(inputStruct2));
|
|
}
|
|
else
|
|
{
|
|
var inputStruct2 = new ComConfirmMessageSiemensInputStruct(content[4], content[5]);
|
|
ans =
|
|
await SendReceiveWithoutExtAndDecAsync(
|
|
new ComConfirmMessageSiemensProtocal().Format(inputStruct2));
|
|
}
|
|
}
|
|
return ans;
|
|
}
|
|
|
|
/// <summary>
|
|
/// 校验报文
|
|
/// </summary>
|
|
/// <param name="content">设备返回的信息</param>
|
|
/// <returns>报文是否正确</returns>
|
|
public override bool? CheckRight(byte[] content)
|
|
{
|
|
if (!base.CheckRight(content).Value) return false;
|
|
var fcsCheck = 0;
|
|
if (content.Length == 1 && content[0] == 0xe5)
|
|
return true;
|
|
if (content.Length == 6 && content[3] == 0) return true;
|
|
for (var i = 4; i < content.Length - 2; i++)
|
|
fcsCheck += content[i];
|
|
fcsCheck = fcsCheck % 256;
|
|
if (fcsCheck != content[content.Length - 2]) return false;
|
|
if (content[content.Length - 1] != 0x16) return false;
|
|
if (content[1] != content.Length - 6) return false;
|
|
return true;
|
|
}
|
|
}
|
|
} |