Sony MDS-E12 User manual

MDS-E12/E11/E52

RS-232C INTERFACE MANUAL

2001 by Sony Sound Communications Inc.

1 Outline

2 Physical connection

Communication conditions of RS-232C

4 Communication packet format

5 Remote mode

6 Transmission data

6.1 Structure of this section

6.2 REMOTE MODE

6.3 POWER

6.4 PLAY

6.5 STOP

6.6 PAUSE ON/OFF

6.7 PAUSE ON

6.8 FF/REW OFF

6.9 REW

6.10 FF

6.11 PREV TRACK

6.12 NEXT TRACK

6.13 REC

6.14 TIME MACHINE REC

6.15 EJECT

6.16 AUTO PAUSE

6.17 TRACK PLAY

6.18 TRACK PAUSE

6.19 ELAPSED TIME

6.20 DIVIDE MODE REQ

6.21 DIVIDE ADJUST

6.22 DIVIDE REQ

6.23 COMBINE MODE REQ

6.24 COMBINE REQ

6.25 EDIT MODE CANCEL

6.26 ERASE REQ

6.27 MOVE REQ

6.28 UNDO REQ

6.29 MODEL REQUEST

6.30 STATUS REQ

6.31 DISC DATA REQ

6.32 MODEL NAME REQ

6.33 REC DATE REQ

6.34 TOC DATA REQ

6.35 TRACK NO. TIME REQ

6.36 DISC NAME REQ

6.37 TRACK NO. NAME REQ

6.38 ALL NAME REQ

6.39 NAME CANCEL

6.40 REC REMAIN REQ

6.41 NAME REMAIN REQ

6.42 DISC NAME WRITE

6.43 TRACK NO. NAME WRITE

7 Transmission data

7.1 Structure of this section

7.2 REMOTE MODE

7.3 POWER

7.4 PLAY

7.5 STOP

7.6 PAUSE

7.7 REC

7.8 REC PAUSE

7.9 EJECT

7.10 MODEL DATA

7.11 STATUS

7.12 DISC DATA

7.13 MODEL NAME

7.14 REC DATE DATA

7.15 DISC NAME

7.16 TRACK NAME

7.17 ALL NAME END

7.18 ELAPSED TIME

7.19 REC REMAIN

7.20 NAME REMAIN

7.21 TOC DATA

7.22 TRACK TIME DATA

7.23 DISC EXIST

7.24 1 TRACK END

7.25 NO DISC NAME

7.26 NO TRACK NAME

7.27 WRITE PACKET RECEIVED

7.28 NO TOC DATA

7.29 ENTER DIVIDE MODE

7.30 ENTER COMBINE MODE

7.31 EDIT COMPLETE

7.32 DIVIDE POINT DATA

7.33 UNDEFINED COMMAND

7.34 IMPOSSIBLE

8 Command quick reference

1 Outline

This manual has the technical information necessary to control the MDS-E12/E11/E52 with the

RS-232C.

Section 2 Explanation about the connection between MDS and PC.

Section 3 Explanation about the communication conditions to

communicate between the RS-232C and MDS.

Section 4 Explanation about the packet format to be used for

communication between MDS and PC.

Section 5 Explanation about the remote mode which controls

MDS independently of the main unit.

Section 6 Explanation about each command to control MDS.

Section 7 Quick reference which is the summary from section 1 to 6.

In this manual, “MDS” is substituted for MD RECORDER, and “PC” is substituted for the

equipment which controls MDS.

As for the numbers, the hexadecimal number is shown in Italic with “H” in the end.

Example: 18 (decimal) = 12H (hexadecimal)

2 Physical connection

Form of the connector for the RS-232C equipped with MDS, name of the pins and the cables for

connection are mentioned in this section.

2-1 Form of the connector and name of the pins

D-Sub9 male pin is used in MDS-E12/E11/52 at the RS232C connector.

The names of pins are shown as below.

Among them, the signal lines of 2:RXD, 3:TXD and 5:GND are connected to MDS.

4:DTR is connected to 6:DSR and 7:RTS is connected to 8:CTS inside MDS.

2-2 Connection of the cables necessary for control

Connections as follows are the minimum requirements to control MDS from PC.

Pin number Name

1 OPEN

2 RXD

3 TXD

4 DTR

5 GND

6 DSR

7RTS

8 CTS

9 OPEN

Connection cables to meet these requirements are commercially available as what are

called “cross cable” or “interlink cable” .

MDS name Pin number PC name Pin number (D-Sub9 male pin) (D-Sub25 female pin)

RXD 2 ←→ TXD 3 2

TXD 3 ←→ RXD 2 3

GND 5 ←→ GND 5 7

3 Communication conditions of RS-232C

Communication conditions of RS-232C are shown as follows.

Baud rate : 9600 bps

Character length : 8 bit

Parity : No parity

Stop bit : 1 bit

Details of data format etc. are explained from section 4 onward.

4 Communication packet format

The packet used in communication between MDS and PC is mentioned in this section.

4-1 Packet structure

It is changeabledatalength and composed of the following factors.

The maximum packet length is 32 byte.

4-1-1 Header

Headerisdifferentbetweenthepackettransmissiondirections,thatisPC->MDSorMDS->PC.

PC->MDS : 7EH

MDS->PC : 6FH

4-1-2 Packet length

Bytevaluefrom header to terminator.

The maximum packet length, 32 byte, occupies the value in the range from 05H to 20H.

4-1-3 Format type

The value of this factor always occupies 05H.

4-1-4 Category

The value of this factor always occupies 47H.

4-1-5 Data

According to the value of this factor, a control command or a request of condition is sent

from PC to MD.

And besides, a reply for control command or a current condition is sent from MD to PC.

Details about these data is explained from section 6 onward.

4-1-6 Terminator

The value of this factor always occupies FFH.

1 Header

2 Packetlength

3 Formattype

4 Category

5 Data

6 Terminator

4-2 Summary

When some data are sent from PC to MDS, packet structure is shown as follows.

And besides, when PC receives some data from MDS, packet structure is shown as

follows.

Details about these data is explained from section 6 onward.

Header Packet length Format type Category Data Terminator

7EH Packetlength 05H 47H Data.... FFH

Header Packetlength Formattype Category Data Terminator

6FH Packetlength 05H 47H Data.... FFH

5 Remote mode

5-1 What is remote mode?

In MDS, processing way for RS-232C is different between during remote ON and during

remoteOFF.

To carry out the request from RS-232C, send off the remote ON command at first to set

the MDS itself to remote ON mode.

When MDS is not in remote ON mode, it does not reply to a command from RS-232C.

5-2 Condition of MDS during remote ON

MDS with remote ON is capable of accepting any command via RS-232C.

When MDS enters remote ON mode, MDS stops all workings and forcibly enters “STOP,

REPEAT OFF and CONTINUE mode”.

While MDS is remote ON, it accepts controls from RS-232C only and does not accept

followings:

∗Keys of main unit

∗Wireless remote control

∗Wired remote control

∗Parallelremoteinput

∗Relayplayback/recordinginput

(Do not operate keys of main unit during remote ON to avoid malfunctions.)

While MDS is remote ON, INPUT switch and REC mode switch (E52 only) can be

changed in main unit only. These switches cannot be changed by remote control.

While MDS is remote ON, output for the following operation can be done according to

an alternation of inside condition:

∗Parallelremote

∗Relayplayback/recordinginput

By sending off remote OFF command, MDS enters remote OFF mode.

5-3 Condition of MDS during remote OFF

When the power is turned on, MDS is in this mode.

While MDS is remote OFF, it accepts followings:

∗Keys of main unit

∗Wireless remote control

∗Wired remote control

∗Parallelremoteinput

∗Relayplayback/recordinginput

As for the command from RS-232C, only remote ON command is acceptable.

When MDS receives a command other than remote ON, it sends back a message

means impossible execution.

5-4 Summary

To control MDS with RS-232C, it is necessary to send remote ON command after turn-

ing on the power to enter remote ON mode.

MDS does not accept an input other than the one from RS-232C during remote mode.

6 Transmission data

6.1 Structure of this section

In this section, details about each command are mentioned.

The commands are classified as function, data length, data, details of function and

example of transmission packet.

Function:General functions of commands are shown.

Data length:Data length of commands are shown.

Data:A fixed data is shown in hexadecimal notation. As for a variable

value, meaning and range of the value are explained.

Details of function:Explanation of the function of commands, notation for command

use and etc. are mentioned.

Example of transmission packet:

Concrete examples of transmission packet are shown.

6.2 REMOTE MODE

Function:To set the remote mode

Data length:2 bytes

Data:10H, Status

Status:03H = On

04H = Off

Details of function:This command changes remote mode of MDS.

As MDS does not accept controls from RS-232C when remote mode

is not ON, it is necessary to use this command to enter remote ON

mode.

When remote mode is OFF, if a packet other than the remote mode

on is sent from PC, MDS sends back “CAN’T EXECUTE”.

When MDS receives this command, it forcibly enters stop mode,

REPEAT OFF or CONTINUE. In this condition, MDS accepts con-

trols from RS-232C until it enters remote mode OFF.

In remote ON mode, MDS does not accept keys of main unit, wireless/

wired remote control, parallel input or Relay Play/Rec.

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