3. Software specifications

Protocol

1)Communication parameters

Communication system Communication speed Bit length

Stop bit Parity bit ACK code

Asynchronous, full duplex 300/600/1200/2400/4800/9600 7 bit/8 bit

1 bit/2 bit

NONE/ODD/EVEN

ACK code returned/ACK code not returned

<Note>

The ACK code is what is returned from the VTR to the controller when data has been successfully sent from the controller.

The underlining indicates the factory settings.

Any changes to the settings can be made using the setup menu items listed below.

Communication parameter

Setup menu item

Communication speed

No. 205

BAUD RATE

Bit length

No. 206 DATA LENGTH

Stop bit

No. 207

STOP BIT

Parity bit

No. 208

PARITY

ACK code

No. 209 RETURN ACK

2) Send format [controller (PC)

VTR]

 

Data format

 

 

 

[STX] [command] [:] [data] [ETX]

(ASCII code: symbols, numbers upper-case letters)

02h

3Ah

03h

20h< <7Fh

[command]: Command identifier; a 3-byte identifier (ASCII code: symbols, numbers, upper-case letters) is sent as the

[ : ]:

command.

This code serves as a delimiter between the command and data.

[data]:

Data (ASCII code: symbols, numbers, upper-case letters) can be added in the number of bytes required.

Outline of send procedure from controller

1.The send command starts with STX (start of text = 02h). The command is then identified by COMMAND which 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, a response is awaited from the VTR, and then the command is sent. (See page 78.)

3.If STX is sent again before ETX is sent, the receive data buffer inside the VTR is cleared. A command error is returned to the controller, and the data is newly processed with STX which was received again at the head.

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Panasonic AJ-PD950, AJ-D950 manual Software specifications, Protocol Communication parameters, Data format
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AJ-PD950, AJ-D950 specifications

The Panasonic AJ-D950 and AJ-PD950 are professional digital video recorders that have earned a reputable position in the broadcast and production industries. These versatile devices combine advanced digital technology with user-friendly features, making them suitable for a wide range of applications, from live event coverage to high-end video production.

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