Panasonic AJ-SD930BE Operating Instructions Manual

Also see for AJSD955B - DVCPRO50 STUDIO DECK: Service manual Brochure & specs

72 (E)CONTENTSSoftware specifications (Protocol)1. Communication parametersRS-232C interfaceCommunicationsystemAsynchronous, full duplexCommunicationspeed300/600/1200/2400/4800/9600Bit length 7bit/8 bitStop bit 1 bit/2 bitParity bit NONE/ODD/EVENACK code ACK code returned/ACK code not returnedThe ACK code is what is returned from theVTR to the controller when data has beensuccessfully sent from the controller.The underlining indicates the factory settings.Communicationparameter Setup menu itemCommunicationspeedNo.205 BAUD RATEBit length No.206 DATA LENGTHStop bit No.207 STOP BITParity bit No.208 PARITYACK code No.209 RETURN ACKAny changes to the settings can be made using thesetup menu items listed below.2. Send format[controller (PC) 5 VTR]$ Data format[STX] [command] [:] [data][ETX]02h XX XX XX 3Ah XX.....XX 03h20H(XX = ASCII code: symbols, numbers upper-caseletters)[command] :Command identifier; a 3-byte identifier (ASCIIcode: symbols, numbers, upper-case letters) issent as the command.[ : ] :This code serves as a delimiter between thecommand and data.[data] :Data (ASCII code: symbols, numbers, upper-case letters) can be added in the number ofbytes required.$ Outline of send procedure from controller1 The send command starts with STX (start of text =02h).The command is then identified by COMMANDwhich follows and the data is added as required.The format ends with ETX (end of text = 03h).2 When a different command is to be sent, aresponse is awaited from the VTR, and then thecommand is sent. (See page 74.)3 If STX is sent again before ETX is sent, the receivedata buffer inside the VTR is cleared. A commanderror is returned to the controller, and the data isnewly processed with STX which was receivedagain at the head.