Error

[jpacora]

Hello, im having this error:
RangeError: Illegal range: 0 <= 21 <= 16 <= 32

My code is:
var cmd = 'DYD,000000#';
var command = new ByteBuffer();
command.writeByte(0x78);
command.writeByte(0x78); // size
command.writeByte(5 + cmd.length); // size
command.writeByte(0x80); //Protocol Number
command.writeByte(4 + cmd.length); //Length of Command
command.writeByte(0x91); // Server Flag Bit end
command.writeUTF8String(cmd)
command.writeShort(crc.crc16ccitt(command.slice(2, 4)));
command.writeByte(0x0D); command.writeByte(0x0A); // ending
console.dir(command)
socket.write(command.toString('hex'))

[dcodeIO]

Looks like you are missing a call to ByteBuffer#flip() after all relative write operations are complete.