User guide

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8 DM Link 1:N Communication Format
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DM Link Communication
External Device Setup Manual
8.2 Write
This command is used by the external device to write data to the MICRO/I or Touch data memory.
One command can write a maximum of 255 words of data.
8.2.1 Command
Format
Detailed description
Command Code Description Bytes
ENQ 05h Command Start 1
Station Number DM Link Station Number expressed in ASCII. 2
W 57h Write Command 1
DM Address DM address to start writing from
This is expressed as the ASCII code of the hexadecimal value of the
address.
4
Words Number of words to write
The hexadecimal value expressed using ASCII code.
2
Data DM Address Data
The hexadecimal value expressed using ASCII code.
The words are in order from the lowest address.
4 x N
N is the number of
words
BCC Only added when 'with BCC' is set.
Exclusive OR (HEX) from ENQ to before BCC converted to ASCII code.
2
CR 0Dh End 1