public void write(byte[] data, int offset, ABContext abcontext)
{
session = abcontext.session;
context = abcontext.context;
abcontext.increment();
LE.setuint16(data, offset, cmd); offset += 2;
LE.setuint16(data, offset, len); offset += 2;
LE.setuint32(data, offset, session); offset += 4;
LE.setuint32(data, offset, status); offset += 4;
LE.setuint64(data, offset, context); offset += 8;
LE.setuint32(data, offset, options); offset += 4;
switch (cmd)
{
case CMD_RR_DATA:
LE.setuint32(data, offset, ihandle); offset += 4;
LE.setuint16(data, offset, timeout); offset += 2;
LE.setuint16(data, offset, count); offset += 2;
LE.setuint16(data, offset, type_1); offset += 2;
LE.setuint16(data, offset, len_1); offset += 2;
LE.setuint16(data, offset, type_2); offset += 2;
LE.setuint16(data, offset, len_2); offset += 2;
break;
case CMD_GET_SESSION:
LE.setuint16(data, offset, protocol); offset += 2;
LE.setuint16(data, offset, flags); offset += 2;
break;
}
}
public static byte[] makeConnectPacket(ABContext context)
{
byte[] packet;
ENIP ip = new ENIP(ENIP.CMD_GET_SESSION);
ip.setSizes(0);
int size = ip.size();
packet = new byte[size];
int offset = 0;
try {
ip.write(packet, offset, context); offset += ip.size();
return(packet);
} catch (Exception e) {
Console.WriteLine(e.ToString());
return(null);
}
}
public static byte[] makeWritePacket(String tag, byte type, byte[] data, ABContext context)
{
byte[] packet;
ENIP ip = new ENIP(ENIP.CMD_RR_DATA);
CIP_Request cip = new CIP_Request();
cip.setWrite(tag, type, data);
ip.setSizes(cip.size());
int size = ip.size() + cip.size();
packet = new byte[size];
int offset = 0;
try {
ip.write(packet, offset, context); offset += ip.size();
cip.write(packet, offset);
return(packet);
} catch (Exception e) {
Console.WriteLine(e.ToString());
return(null);
}
}