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Serial Communication, cont’d
DVS 304 • Serial Communication
3-16
Command/response table for IP control port commands (continued
Command ASCII (Telnet
(host to processor
URL Encoded (Web
(host to processor
Response
(processor to host
Additional description
Query updated firmware
version
4Q 4Q
X1! ]
Use this command to find out which version f
firmware has been uploaded into the
processor post factory.
Example:
4Q 4Q 1.01 * (1.46-DVS 304
Series -Mon, 17 Jan
2005 17:03:46 GMT)
In this example, factory firmware version is
1.01, kernel version 1.46, for DVS 304, dated
1Jan, 2005
Information requests
Request processor part number N N
60-XXX-XX
]
Show processor part number. DVS 304 is
60-736-01 DVS 304 A is 60-736-02
Request model name 1I 1I Extron Electronics
DVS 304 X
]
Show processor model name
Request model description 2I 2I Digital Video Scaler Show type of unit.
Request system memory usage 3I 3I # Bytes used out of
#Kbytes
]
Show amount of memory used and total
available memory for system operations.
Request user memory usage 4I 4I # Bytes used out of
#Kbytes
]
Show amount of user memory used and
total vailable user memory.
Event Control
Read event memory buffer
27
E X3%, X3^, X3&, X3*
E}
WX3%, X3^, X3&, X3* E| X5$ ]
Read the contents of a specific section of a
memory buffer for event number
X5$.
Write event to memory
buffer
24 27
E X3%, X3^, X3&,
X3*, X3( E}
W X3%, X3^, X3&, X3*,
X3( E|
Ewr
X3%, X3( ] Write event X3% to buffer X3^, offset
by
X3&. Include data X3( , size X3*.
Read string from event buffer
memory
27
E X3%, X3^, X3&, X4$
FE}
W X3%, X3^, X3&, X4$
FE|
{string} ] Read string from eventX3%, buffer
X3^, offset by X3&,X4$ bytes.
Write string to event buffer
memory
24 27
E X3(,X3%,X3^,X3&
FE}
W X3(, X3%, X3^,
X3&FE|
Ewr X3%, X3(] Write data string X3( from eventX3%,
buffer
X3^, offset byX3&.
Start events
24 27
E1AE}
W1AE|
Ego
]
Initiate all programmed events.
N
X1! = Version number (listed to 2 decimal places)
X3% = Event number range: 0 - 99
X3^ = Event buffer: 0 = receive, 1 = unified, 2 = data, 3 = NVRAM
X3& = Event buffer offset (range: 0 to MaxBufferSize)
X3* = Event data size b = bit, B = byte (8 bits), S = short (16 bits), L = long (32 bits) N This parameter is case sensitive.
X3(= Event data to write
X4$ = Number of bytes to read (range = 1-24 max)
X5$ = ASCII digit(s) representing the numeric value of the data element read from the event buffer (leading zeros are suppressed)