text: var Package = require("./tools").Package;
  var pack    = require("./tools").pack2uint16;
  
  exports.request = function (transactionId, unitId, address, value) {
  	var buf = new Buffer(4);
  
  	buf.writeUInt16BE(address, 0);
  	value.copy(buf, 2, 0, 2);
  
  	return new Package(
  		transactionId,
  		unitId,
  		"WRITE_SINGLE_REGISTER",
  		buf
  	);
  };
  exports.response = exports.request;
  