Kramer Electronics VP-8x4 - Manual (Page 31)

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Kramer Protocol 2000
28
4 th BYTE: Bit 7 – Defined as 1.
Bit 5 – Don’t care.
OVR – Machine number override.
M4…M0 – MACHINE NUMBER.
Used to address machines in a system via their machine numbers. When several machines are controlled from a single serial
port, they are usually configured together with each machine having an individual machine number. If the OVR bit is set, then
all machine numbers will accept (implement) the command, and the addressed machine will reply.
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 11: Instruction Codes for Protocol 2000
Note: All values in the table are decimal, unless otherwise stated.
INSTRUCTION DEFINITION FOR SPECIFIC INSTRUCTION
# DESCRIPTION INPUT OUTPUT
NOTE
0 RESET VIDEO 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 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 / VALID INPUT IS
DETECTED
SETUP #
or
Input #
0 - for checking if setup is defined
1 - for checking if input is valid
8
16 ERROR / BUSY For invalid / valid input (i.e.
OUTPUT byte = 4 or
OUTPUT byte = 5),
this byte is set as the input
#
0 - error
1 - invalid instruction
2 - out of range
3 - machine busy
4 - invalid input
5 - valid input
6 - RX buffer overflow
9, 25
30 LOCK FRONT PANEL 0 - Panel unlocked
1 - Panel locked
0 2
31 REQUEST WHETHER PANEL
IS LOCKED
0 0 16
57 SET AUTO-SAVE I3 - no save
I4 - auto-save
0 12, 2
61 IDENTIFY MACHINE 1 - video machine name
3 – video software version
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
13
62 DEFINE MACHINE 1 - number of inputs
2 - number of outputs
3 - number of setups
1 - for video 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).