Sony EVI-H100V User Manual

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Use of RS-232C control software which has been

developed based upon this command list may cause

malfunction or damage to hardware and software. Sony

Corporation is not liable for any such damage.

In VISCA, the device producing the commands, for

example, a computer, is called the controller, while the

device receiving the commands, such as an

EVI-H100S/H100V, is called the peripheral device. The

EVI-H100S/H100V serves as a peripheral device in

VISCA. In VISCA, up to seven peripheral devices like

the EVI-H100S/H100V can be connected to one

controller using communication conforming to the

RS-232C standard. The parameters of RS-232C are as

follows.



 Communication speed: 9,600 bps/38,400 bps



 Data bits : 8



 Start bit : 1



 Stop bit : 1



 Non parity

Flow control using XON/XOFF and RTS/CTS, etc., is

not supported.

Peripheral devices are connected in a daisy chain. As

shown in Fig. 1, the actual internal connection is a one-

direction ring, so that messages return to the controller

via the peripheral devices. The devices on the network

are assigned addresses.

The address of the controller is fixed at 0. The

addresses of the peripheral devices are 1, 2, 3 ... in

order, starting from the one nearest the controller. The

address of the peripheral device is set by sending

address commands during the initialization of the

network.

The VISCA devices each have a VISCA IN and VISCA

OUT connector.

Set the DSR input (the DTR output of the controller) of

VISCA IN to H when controlling VISCA equipment

from the controller.

VISCA Equipment

IN

OUT

IN

OUT

IN

OUT

 VISCA Controller

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1) VISCA is a protocol which controls consumer camcorders developed by Sony. “VISCA” is a trademark of Sony Corporation.