Kramer VM-114H [20/22] Instruction codes for protocol 2000
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Kramer VM-114H [20/22] Instruction codes for protocol 2000

Kramer VM-114H [20/22] Instruction codes for protocol 2000
VM-114H - Protocol 2000
17
When a single machine is controlled over the serial port, always set M4…M0 to 1, and make sure that the machine itself
is configured as MACHINE NUMBER = 1.
Instruction Codes for Protocol 2000
Instruction
Definition for Specific Instruction
Notes
#
Description
Output
0
RESET VIDEO
0
1
1
SWITCH VIDEO
Set equal to video output that is
switched
(0 = to all the outputs)
2, 15
61
IDENTIFY MACHINE
For names:
0 – Request first 4 digits
1 – Request first suffix
2 – Request second suffix
3 – Request third suffix
10 – Request first prefix
11 – Request second prefix
12 – Request third prefix
For versions:
0 – main board
or the number of external board
13
62
DEFINE MACHINE
1 – For video
2 – For audio
3 – For SDI
4 – For remote panel
5 – For RS-422 controller
6 – For control data
14
NOTES on the above table:
NOTE 1 – When the master switcher is reset, (e.g. when it is turned on), the reset code is sent to the PC. If this code is
sent to a switcher, it resets according to the present power-down settings.
NOTE 2 – These are bi-directional definitions. If the switcher receives the code, it performs the instruction. If the
instruction is performed (due to a keystroke operation on the front panel), then these codes are sent.
For example, if the PC sends HEX code:
01 85 88 83
then the switcher (machine 3) switches input 5 to output 8.
If the user switches input 1 to output 7 using the front panel buttons, the switcher sends HEX code:
41 81 87 83
to the PC.
When the PC sends one of the commands in this group to the switcher, if the instruction is valid, the switcher replies by
sending the same four bytes to the PC that it received (except for the first byte, where the DESTINATION bit is set high).
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 sends 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 is HEX code:
7D 96 90 81 (i.e. 128
dec
+ 22
dec
for 2
nd
byte, and 128
dec
+ 16
dec
for 3
rd
byte).
If the request for identification is sent with the INPUT set as 3 or 4, the appropriate machine sends 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 code:
7D 83 85 81 (i.e. 128
dec
+ 3
dec
for 2
nd
byte, 128
dec
+ 5
dec
for 3
rd
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 code:
7D D9 C3 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 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:
3E 82 81 82 (i.e. request the number of outputs)
would be HEX code:
7E 82 90 82 (i.e. 16 outputs).
NOTE 15 – When the OVR bit (4
th
byte) is set, then the video commands have universal meaning.
For example, instruction 1 (SWITCH VIDEO) causes all units (including audio, data, etc.) to switch. Similarly, if a
machine is in FOLLOW mode, it performs any video instruction.

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