JVC DLA-DS1U Serial protocol for the DLA-DS1U and DLA-M2000LU/SC D-ILA project - Page 10

8. TALLY(RESPONSE)DATA The Projector will only accept and process data when the ID number included with the data coincides with the ID-number registered to the Projector itself. (Except when ID = '0') If the received ID-number matches the Projector's ID, it will return a response to the query from the external control unit. This response data is called "Tally (Response) Data". (However, when ID = '0', tally (response) data is not replied.) The Tally (Response) Data is normally returned within 3 seconds after the data is received. There are some exceptions, however (e.g. POWER command) After transmitting data, the external control unit cannot transmit subsequent data until the Tally (Response) Data is received. However, if Tally (Response) Data is not returned within 3 seconds after transmitting the data (there are some exceptions such as the POWER command), data transmission can be retried. 8.1 Tally (Response) Data Status 8.1.1 Normal Termination Status Character HEX Definition '0' 30 Command received and processing terminated 8.1.2 Status when Error Occurs (Error Status) Character HEX Definition 'A00' 41H 30H 30H Command not supported 'A01' 41H 30H 31H Invalid parameter 'A02' 41H 30H 32H Parameter value exceeds operation range 'A03' 41H 30H 33H Unclassified error 'A04' 'A05' 41H 30H 34H 41H 30H 35H Unacceptable command in current mode or Unacceptable command with current setting Command cannot be accepted if no signal. 'A0A' 'A0B' 41H 30H 41H 41H 30H 42H Time-out occurred with the communication with sub microcomputer Error occurred with the communication with sub microcomputer 8.2 Tally (Response) Data Parameter The Tally (Response) Data Parameter is returned when the Tally (Response) Data is issued in response to a query (request for data). No parameter is returned when Tally (Response) Data issued in response to a command or when an error occurs. 9