Programmers User Manual

13.8 Focus Position Request Camera Control Command Type 1

Function To return present focus position.

Command 00B1h

Length 1 byte Parameter

Value 0h

Length 4 byte Status

Range Within range to be return by Focus Range Request

Reference

 Format of Control Code

d0 d1 d2 d3 d4 d5 d6

Header Device Num Command Parameter End mark

FFh 30h 3Xh 00h B1h 30h EFh

 Answer Format

 In case of No Error

d0 d1 d2 d3 d4 d5 d6 d7 d8 d9

Header Device Num Error Code Focus Position End mark

FEh 30h 3Xh 30h 30h s0 s1 s2 s3 EFh

⇓

Present position indicates in hexadecimal 4 figures and its ASCII code is Status

value.

Example: s0 s1 s2 s3

256 ⇒ 0100h ⇒ 30h 31h 30h 30h

 In case of Error

d0 d1 d2 d3 d4 d5

Header Device Num Error Code End mark

FEh 30h 3Xh e0 e1 EFh

⇓

Error Flag indicates in 2 figures hexadecimal and returns ASCII code value.

Example: e0 e1

 In case of Busy : 00010000B ⇒ 10h ⇒ 31h 30h

 In case of Mode Error : 10010000B ⇒ 90h ⇒ 39h 30h

 Condition of Error flag to be set

Busy •In process of camera initializing operation by Camera Reset

command, etc.

•In case of executing Preset Move command.

Mode Error •Not in status of Camera ON.

•Not in status of Host Control Mode.