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Kramer protocol 2000 – Kramer Electronics VS-44HDxl User Manual

Page 28

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Kramer Protocol 2000

25

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 7: 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

3

STORE VIDEO STATUS

Set as SETUP #

0 - to store

1 - to delete

2, 3

4

RECALL VIDEO STATUS

Set as SETUP #

0

2, 3

5

REQUEST STATUS OF A VIDEO

OUTPUT

Set as SETUP #

Equal to output number whose

status is reqd

4, 3

10

REQUEST SIGNAL STANDARD

SETTING

Input number

0

4, 5

15

REQUEST WHETHER SETUP IS

DEFINED

SETUP #

0 - for checking if setup is defined

8

16

ERROR / BUSY

0

0 - error

1 - invalid instruction

2 - out of range

3 - machine busy

6 - RX buffer overflow

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

3 - video software version

0 - Request first 4 digits

1 - Request first suffix

2 - Request second suffix

10 - Request first 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).

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. For example, if the present status of output

number 3 is "connected to input number 2", then the reply to the HEX code

05

80

83

81

would be HEX codes

45

80

82

81