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Kramer Protocol 2000
23
For a single machine controlled via the serial port, always set M4…M0 = 1, and make sure that the machine itself is
configured as MACHINE NUMBER = 1.
Table 8: Instruction Codes for Protocol 2000 (Relevant to the VS-66FW)
Note: All values in the table are decimal, unless otherwise stated.
INSTRUCTION DEFINITION FOR SPECIFIC INSTRUCTION
# DESCRIPTION INPUT OUTPUT
NOTE
0, 18 RESET 0 0 1
1 SWITCH VIDEO Set equal to video input which is
to be switched
(0 = disconnect)
Set equal to video output which is to be
switched
(0 = to all the outputs)
2, 15
3 STORE VIDEO and
AUDIO STATUS
Set as SETUP # 0 - to store
1 - to delete
2, 3, 15
4 RECALL VIDEO
STATUS
Set as SETUP # 0 2, 3, 15
5 REQUEST STATUS
OF A VIDEO OUTPUT
Set as SETUP # Equal to output number whose status is reqd
4, 3
15 REQUEST WHETHER
SETUP IS DEFINED
Set as SETUP # 0 8
16 ERROR / BUSY 0 0 - error
1 - invalid instruction
2 - out of range
9
30 LOCK FRONT PANEL 0 - Panel unlocked
1 - Panel locked
0 2
31 REQUEST WHETHER
PANEL IS LOCKED
0 0 16
61 IDENTIFY MACHINE 1 - video machine name
2 - audio machine name
3 - video software version
4 - audio software version
0 - Request first 4 digits 13
62 DEFINE MACHINE 1 - number of inputs
2 - number of outputs
3 - number of setups
1 - for video
2 - for audio
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
the switchers, it will reset according to the present power-down settings.
NOTE 2 - These are bi-directional definitions. That is, if the switcher receives the code, it will perform the instruction; and if
the instruction is performed (due to a keystroke operation on the front panel), then these codes are sent. For example, if the
HEX code
01 85 88 83
was sent from the PC, then the switcher (machine 3) will switch input 5 to output 8. If the user switched input 1 to output 7 via
the front panel keypad, then the switcher will send HEX codes:
41 81 87 83
to the PC.
When the PC sends one of the commands in this group to the switcher, then, if the instruction is valid, the switcher replies by
sending to the PC the same four bytes that it was sent (except for the first byte, where the DESTINATION bit is set high).
NOTE 3 - SETUP # 0 is the present setting. SETUP # 1 and higher are the settings saved in the switcher's memory, (i.e. those
used for Store and Recall).
NOTE 4 - The reply to a "REQUEST" instruction is as follows: the same instruction and INPUT codes as were sent are
returned, and the OUTPUT is assigned the value of the requested parameter. The replies to instructions 10 and 11 are as per
the definitions in instructions 7 and 8 respectively. For example, if the present status of machine number 5 is breakaway
setting, then the reply to the HEX code
0B 80 80 85
would be HEX codes
4B 80 81 85
NOTE 5 – For the OUTPUT byte set as 6, the VIS source is the input selected using the OUTPUT byte. Similarly, for the
OUTPUT byte set as 7, the VIS source is the output selected using the OUTPUT byte. Note also, that on some machines the
sync source is not software selectable, but is selected using switches, jumpers, etc!