Configuring the camera using the serial interface, Communication setting, Command protocol – JAI CV-M77 User Manual

Page 16: Cv-m77, 2 communication setting, 3 command protocol

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CV-M77

7 Configuring the camera using the serial interface.

7.1 Mode Setting using ASCII commands via the RS-232C port.

The configuration of the CV-M77 camera can be done via the RS-232C port. The camera is to be
set up via an ASCII terminal or from a PC running terminal emulator software.
Below is the description of the ASCII based short command protocol.

The RS-232C serial interface specification for CV-M77 is:

7.2 Communication

setting

Baud Rate

9600bps

Data Length

8bit

Stop Bit

1bit

Parity Non

Xon/Xoff Control

Non

7.3 Command

Protocol

Command Name

Format

Parameter

Remarks

A - General settings and useful commands.

1 Echo back

EB=[Param.]<CR><LF>

0=Echo off
1=Echo on
Set to 'off' when power is on.

2

Firmware program
version request

VN?<CR><LF>

Response is 3 letter
(ex) 100

B - Timing and shutter related commands.

1 Shutter mode

SM=[Param.]<CR><LF>
SM?<CR><LF>

0=Normal
1=Programmable exposure

2 Shutter speed

SH=[Param.]<CR><LF>
SH?<CR><LF>

0=OFF(1/25), 1=1/50, 2=1/125,
3=1/250, 4=1/500, 5=1/750,
6=1/1000, 7=1/1500, 8=1/2000,
9=1/3000, 10=1/4000, 11=1/10000

Available when SM=0 and
TR=0 or 1or 3.

3

Programmable
exposure

PE=[Param.]<CR><LF>
PE?<CR><LF>

3-791
(1/10000s - 1/25s in 1HD
increments)
3= 1.5H(0.076ms)
4= 2.5H(0.127ms)
:
791=789.5H(40.107ms)

Available when SM=1 and
TR=0 or 1 or 3.

4 Trigger mode

TR=[Param.]<CR><LF>
TR?<CR><LF>

0=Normal
1=Edge pre-select
2=Pulse width control
3=Frame delay readout
4=Long time shutter
5=PWC delay readout

5 Wen polarity

WP=[Param.]<CR><LF>
WP?<CR><LF>

0=Active_L, 1=Active_H

6 G on SYNC

SY=[Param.]<CR><LF>
SY?<CR><LF>

0=OFF, 1=ON

7 EEN polarity

EP=[Param.]<CR><LF>
EP?<CR><LF>

0=Active_L, 1=Active_H

8 WEN/Sync switch

WS=[Param.]<CR><LF>
WS?<CR><LF>

0=WEN, 1=Sync

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