private MBMessage AckReadCoil(MBMessage req)
{
MBMessage resp = new MBMessage(req);
/**
* req:
* Byte 1-2:Reference number
* Byte 3-4:Bit count (1-2000)
* resp:
* Response
* Byte 1: Byte count of response (B=(bit count+7)/8)
* Byte 2-(B+1):Bit values (least significant bit is first coil!)"
*/
ushort refNum = req.GetWord(0);
ushort bitCount = req.GetWord(2);
if (_cms.IsValidRegAddress((byte)refNum))
{
byte[] byteValues = _cms.MB_ReadCoils(refNum, bitCount);
// 写入.
var bcnt = byteValues.Length;
resp.SetBodySize((ushort)(bcnt + 1));
resp.SetByte(0, (byte)bcnt);
for (byte i = 0; i < bcnt; i++)
{
resp.SetByte(i + 1, byteValues[i]);
}
}
else
{
// Error Response.
// Byte 0:FC = 81 (hex)
// Byte 1:exception code = 01 or 02
resp.FC = 0x82;
resp.SetBody(new byte[] { MBException.E02_ILLEGAL_DATA_ADDRESS });
}
return resp;
}
MBMessage NewWriteCoil(ushort addr, bool onOff)
{
MBMessage req = new MBMessage();
req.TID = 0xFF;
req.UID = 0x01;
req.PID = 0;
req.FC = 0x05;
req.SetBodySize(4);
req.SetWord(0, addr); // 单樘门开门控制信号 - 读/写 0x11
req.SetByte(2, onOff ? (byte)0xFF : (byte)0x00); // 读取16*6个字节
req.SetByte(3, 0x00);
return req;
}
// 扫描
private void buttonScan_Click(object sender, EventArgs e)
{
if (_client == null) return;
MBMessage req = new MBMessage();
req.TID = 0xFF;
req.UID = 0x01;
req.PID = 0;
req.FC = 0x01;
req.SetBodySize(4);
req.SetWord(0, 0); // x: 0x0000
req.SetWord(2, 53 * 16); // 全部读取.
MBMessage resp = SendRequest(req);
int DOF = 1;
if (resp == null) return;
int zcnt = 6;
int scnt = 7; //状态列: action,so,sc,err,lcb,green,red
int regStart = 0x0B;
int reg;
int cs = ViewColumns.ACTION;
for (int c = 0; c < scnt; c++)
{
// log.DebugFormat("state {0}", c);
for (int z = 0; z < zcnt; z++)
{
reg = regStart + zcnt * c + z; // z=0: 11, 11+ 6*1,
// log.DebugFormat("{0}", reg);
byte b1 = resp.GetByte(reg * 2 + DOF); // Z0, 动作, 0-7 号门
byte b2 = resp.GetByte(reg * 2 + 1 + DOF); // Z0, 动作, 8-11号门
UpdateDoorState(z, c + cs, b1, 0, 8);
UpdateDoorState(z, c + cs, b1, 8, 4);
}
}
}