Broadcast DPS ES-2200, Руководство оператора

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Appendix B: Serial Protocol
This section describes the serial data interface to the ES-2200. The information presented here is intended for
users/programmers who want to develop their own custom driver software for the ES-2200. DPS has developed DOS
and AMIGA software that is normally included with every purchase of a Personal TBC IV/ TBC III card or a Personal
V-SCOPE card. Also, PC software is available for the MicroSYNC and the Personal Routing Switcher card. The same
software can be used to remote control the ES-2200. If the ES-2200 was purchased with any of the above cards
installed (i.e. TBC IV or V-Scope etc.) then a copy of the software along with software manuals will be included with
the unit. This software can be used to remote control the ES-2200 the same way it controls an individual card.
Electrical Interface
The electrical interface is RS-232. The bit rate will be 31,250 BPS or 9,600 BPS (DIP Switch selectable), with 8 data
bits, 1 stop bit, no parity. The pin-out for the remote data input on the ES-2200 is explained below:
Connector Type: DB 9 Female
PIN 3
RS-232 In
PIN 5 Ground
Protocol
The software protocol is a MIDI compatible format, using the system exclusive feature of the MIDI interface.
Communication with the ES-2200 is initiated when the system exclusive command byte (F0 Hex) is received, followed
by the unit ID code (67 Hex). The unit ID is 67 Hex for all DPS products.
The next byte sent is the unit address byte (TBC/ MicroSYNC/ Switcher) or the V-SCOPE address byte, which
determines which DPS card is being addressed by the command. This is followed by a unit function byte, and 1 or
more data bytes. The Data byte(s) is send in ASCII for all the cards except for the V-Scope it should be sent in binary.
The communications is completed when the MIDI end system exclusive byte is sent (F7 Hex). The following table
summarizes the protocol:
HOST: System Exclusive Byte (=F0 Hex)
UNIT ID Byte (=67 Hex)
UNIT Address Byte (=40 Hex, 00-0F Hex - or =10 Hex for a V-Scope)
Function Select Byte (= 00-7F Hex)
Data Byte 1 (ASCII..Binary if V-Scope)
Data Byte 2 (ASCII..Binary if V-Scope)
End System Exclusive (= F7 Hex)
System Exclusive Byte
This byte is used in the MIDI protocol to allow manufacturers of MIDI equipment to define messages specific to their
own equipment. The system exclusive mode remains in effect until the end system exclusive command is sent.