B&K CT310 Bedienungsanleitung PDF herunterladen (Seite 45)

CT600/602/610 and CT300/310 BKC-DIP Product Specific Appendices

Version 2.00.09

Updated 12/15/06

Page 45 of 48

Note 6: There is 2000h, 8192 decimal, bytes allocated in non-volatile

memory for use by the serial macros. Each macro consumes:

1 byte Macro Number

2 bytes Macro Length

1 byte Macro Trigger ID

1 byte Macro Trigger Code

1 byte Macro Scrollable and BaudRate

1 byte Macro Output Mask

x bytes Macro Message Message Length

As an example, a macro message of “Hello World” would consume

7 + 11 bytes of memory.

Thus the amount of memory available for a macro is variable,

depending upon what other macros currently exist. In the one

extreme case of the largest single message, one could create a

single macro with a message length of 8185 characters.

NOTE: Although the Serial Macro structures can accommodate

very large string lengths, the practical limit for macro

message length is approximately 2000 bytes. This is due

to the fact that the receive buffer in the unit is only

2048 (2k) bytes long, and processing of the message

cannot occur until the entire message is received. Thus

it is not possible to send a valid BKC-DIP message to a

CT300/310/600/602/610 of length longer than 2048 bytes.

Taking into account the syntax overhead of BKC-DIP

(receive ID, checksum, open/close parenthesis, etc.)

leaves approximately 2000 bytes for an actual Serial

Macro message. Should this become an issue, create 2

independent macros with the same trigger IDs and trigger

codes. The macro number will determine the priority of

the macros with matching trigger conditions, with lower

macro numbers having the higher priority.

In the other extreme case of maximum number of macros (255,

macro numbers 0h through FEh), each macro would have a message

length of 25 characters.

NOTE: If a macro is too large for the available space, it is

not accepted. Monitoring the maximum free space is

recommended by reading the Macro Free Space MSB and LSB

(see Note 8 below) to indicate how much available macro

space is available before attempting to write a macro

message.

1 2 ... 40 41 42 43 44 45 46 47 48

Kommentare zu diesen Handbüchern

Keine Kommentare

B&K CT310 Bedienungsanleitung Seite 45

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Empfänger B&K CT310