A kind of method for converting protocol, device and control system

The invention discloses a kind of method for converting protocol, device and control systems, are related to field of communication technology, to expand the use scope of air-conditioning.The specific scheme is that protocol conversion apparatus receives the write command that control system is sent, control system supports the first agreement, and write command follows the first agreement；The first numerical value is written according to the control address and the first numerical value indicated in write command in protocol conversion apparatus in control address, and a control address is the physical address of the dbjective state of the first item for setting air-conditioning in protocol conversion apparatus；Protocol conversion apparatus determines control instruction representative when the value of control address is the first numerical value, generates control message according to control instruction, control message follows second protocol, and air-conditioning supports second protocol；Protocol conversion apparatus sends control message to air-conditioning, executes corresponding movement according to the control instruction for including in control message for air-conditioning.