Extron Electronics MS9500 HD FrEND Plus - Manual (Page 77)

MS9500GL HD FrEND Plus Chapter 12: Remote Control Protocols
Examples
Use the following sequence of commands to set up and play an entry from the Playlist.
Playrange 1 0 0 This command pre-loads channel 1 with the first entry in the
playlist.
Play 1 This command plays the file selected on channel 1 by the
command above.
ES 4000
The ES 4000 Protocol is a proprietary protocol developed by Electrosonic for integrated control of their entire
product range, covering ESLINX, PICBLOC, IMAGESTAR etc. A subset of this protocol, called the H type
message, was designed to communicate with Electrosonic devices that provide control of source machines such as
Laserdisks. The HD Player recognizes a subset of the H Type protocol. This provides the simplest way for the HD
Player to be integrated into shows programmed with Easy and C- through (by Electrosonic).
The protocol is structured as follows.
^A H Frame No ^B Player Commands ^W ^C
These fields are as follows.
^A – Start of message marker. (01 Hex)
This single byte value indicates the start of a message.
H – message type indicator (48 Hex)
This single byte value indicates the ES4000 message type
FrameNo – Chapter/frame No
This field is a six digit numeric ASCII field that is used for the search, chapter start, and chapter stop commands.
^B – End of header marker. (02 Hex)
This single byte value marks the end of the header and start of the player commands.
Player Commands
This field specifies a command for each of 12 possible channels provided by the protocol (this allows multiple
Players to be controlled from a single command). 2 ASCII digits represent each command, therefore the Player
Command field can contain up to 24bytes. (Note the HD Player will only process commands up to the ^W marker
so that if you only wish to control channels 1- 4 then only 8 bytes are required (2 bytes for 4 players).
The ES400 setup options for the HD Player allow the user to select which channel, out of the 12 possible, should
be monitored.
^W –End of command block. (17 Hex)
This single byte value indicates the end of the player commands block.
^C– End of message marker. (03 Hex)
This single byte value indicates the end of the message
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