User Manual

ManualsBrandsCooke ManualsDigital Cine Lenses40mm T2.8 miniS4/i Cine Lens

Table Of Contents

6. Each time EDSU generates new data, it issues OD command to send data. This data

is stored in lens in EDSU buffer. (When new string is received by lens, it replaces

existing EDSU contents with new string.)

7. The lens generates data strings at whatever rate is required (single or continuous)

and uses the latest EDSU data to append.

8. To terminate the process, the EDSU sends OH command.

EDSU can also request lens operate in Continuous data send mode (ASCII or Binary)

so lens data is available to EDSU for use internally or passed through to secondary

unit.

9. In this mode, data from lens is mixed with responses from OD commands issued by

the EDSU, (response will be first string sent by lens after receipt of any OD

command so will not be confused with next continuous data string.)

9.3 EDSU Dependencies – Blocking Requirements for Pass-Through Operation

If EDSU has a secondary unit attached, and it allows commands from the secondary unit to

be passed to the lens, (and corresponding response passed back), certain commands should

be blocked to prevent corruption of the communication process.

Table 8: Valid Commands - Allowed & Blocked Recommendations with EDSU

Command

Function

Recommendation

Retrieve firmware version

Allowed

Set Continuous send ASCII data

Allowed (unless EDSU using Kd or

Kc)

Retrieve single ASCII data string

Allowed (unless EDSU using C or

Kd or Kc)

Retrieve single ASCII string

Allowed (unless EDSU extracts

single block and passes through to

secondary unit)

Set checksum mode ON

Beware

Unset optional modes

Beware

Kbn

Set/Change baud rate

Blocked (unless EDSU follows

baud rate change)

Set continuous send Binary data

Allow (unless EDSU using C or D)

Request single Binary data string

Allow (unless EDSU using C or D)

Kjn

Set both illumination levels

Allow

Kkn

Set single illumination level

Allow

Retrieve Fixed data block

Allow

EDSU only command

Block

EDSU only command

Block

EDSU only command

Block

EDSU only command

Block

EDSU only command

Block