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STE 80722

– 35 –

COMMUNICATION MANUAL

series Robot Controller

5.2 Transmission Format

Transmissions are made with the text unit shown below. A maximum of 253 bytes of

actual data can be transmitted as a single text. Actual data in amounts over 253 bytes

will be transmitted in one of the following two ways.

(1) Files (robot programs, positional data, parameters) will be broken down into

multiple texts and transmitted as described in Para. 5.3.3. The receiving station

will send an answer signal back for each block of text transmitted. File upload

(or download) commands are not necessary to transmit the second and

following blocks of text.

(2) Messages to be transmitted

Messages will be sent with multiple transmissions. In other words, the data will

be broken down into multiple texts and each text will be transmitted

independently. The station that received the data will reconstruct the multiple

texts back into a single message.

5.2.1 Text

1 byte

STX(0x02)

DATA

ETX(0x03)

Text length: Max. 255 byte (from STX through ETX)

Text content:



STX Start of text code (0x02) – 1 byte



DATA Data section (Max. 253 bytes)



ETX End of text code (0x03) – 1 byte

Max. 255 bytes

Max. 253 bytes

Toshiba TSL3000 Communications Manual

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