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System exclusive message assignment examples
•
Specifying a checksum
(p. 58)
•
Specifying the location of the data
(p. 59)
•
Entering channel/block data
(p. 60)
Specifying a checksum
The PCR-300/500/800 can automatically calculate a checksum within a system
exclusive message and insert the result of this calculation into the message. To use this
function, use the following procedure to specify the location at which the checksum
calculation should be inserted. You can also select the type of checksum.
For a specific example, refer to system exclusive assign
Bend Pitch Control
(p. 63).
fig.D-css.eps
1
Press the [CHK SUM] (checksum) button before you enter the byte
that will begin the checksum calculation.
The display will indicate “CSS” (checksum start).
If you press the [CHK SUM] button once again, “CSS” will be cancelled.
2
Press the [ENTER] button.
3
Continue entering data.
fig.D-cs1.eps
4
Press the [CHK SUM] button at the location at which the checksum
should be inserted.
The display will indicate “CS1” (checksum type 1).
5
Press the [ENTER] button.
Checksum types
There are two types of checksums, as follows
Switching the type
fig.Switch-cs12.eps
If you want to switch to Type 2, press controller [A2] after pressing the [CHK SUM]
button in step 4.
If you want to return to Type 1, press controller [A1]. You can also switch the setting
by turning the VALUE knob.
Controller
Display Item Summary
[A1 (0)]
CHECK SUM
TYPE1
The method used by Roland
and most other manufacturers
[A2 (1)]
CHECK SUM
TYPE2
Methods other than Type 1
[CHK SUM]
[CHK SUM]
[A1 (0)][A2 (1)]
PCR-300_500_800_e.book 58 ページ ２００６年１２月１９日 火曜日 午後２時５９分