Kramer Electronics VP-8x8 User Manual

Page 29

VP-8x8 - Protocol 2000

NOTE 10

– This code is reserved for internal use.

NOTE 12 - Under normal conditions, the machine's present status is saved each time a change is made. The "power-
down" save (auto-save) may be disabled using this code. Note that whenever the machine is turned on, the auto-save
function is set.

NOTE 13 - This is a request to identify the switcher/s in the system. If the OUTPUT is set as 0, and the INPUT is set as
1, 2, 5 or 7, the machine will send its name. The reply is the decimal value of the INPUT and OUTPUT. For example, for
a 2216, the reply to the request to send the audio machine name would be (HEX codes):

81 (i.e. 128

dec

+ 22

dec

for 2

byte, and 128

dec

+ 16

dec

for 3

byte).

If the request for identification is sent with the INPUT set as 3 or 4, the appropriate machine will send its software
version number. Again, the reply would be the decimal value of the INPUT and OUTPUT - the INPUT representing the
number in front of the decimal point, and the OUTPUT representing the number after it. For example, for version 3.5,
the reply to the request to send the version number would be (HEX codes):

81 (i.e. 128

dec

+ 3

dec

for 2

byte, 128

dec

+ 5

dec

for 3

byte).

If the OUTPUT is set as 1, then the ASCII coding of the lettering following the machine’s name is sent. For example, for
the VS-7588YC, the reply to the request to send the first suffix would be (HEX codes):

81 (i.e. 128

dec

+ ASCII for “Y”; 128

dec

+ ASCII for “C”).

NOTE 14 - The number of inputs and outputs refers to the specific machine which is being addressed, not to the
system. For example, if six 16X16 matrices are configured to make a 48X32 system (48 inputs, 32 outputs), the reply to
the HEX code

82 (i.e. request the number of outputs)

would be HEX codes
7E

ie. 16 outputs

NOTE 16 - The reply t

o the “REQUEST WHETHER PANEL IS LOCKED” is as in NOTE 4 above, except that here the

OUTPUT is assigned with the value 0 if the panel is unlocked, or 1 if it is locked.

NOTE 21

– To store data in the non-volatile memory of the unit, eg. the EEPROM for saving SETUPS. The EEPROM

address is sent using the INPUT byte, and the data to be stored is sent using the OUTPUT byte. To use this instruction,
it is necessary to understand the memory map, and memory structure of the particular machine.

NOTE 25

– For units which detect the validity of the video inputs, Instruction 16 will be sent whenever the unit detects a

change in the state of an input (in real-time).

For example, if input 3 is detected as invalid, the unit will send the HEX codes

If input 7 is detected as valid, then the unit will send HEX codes

81.