ICP DAS USA tM Series, User Manual

Page: 36 / 144

2. DCON Protocol
All communication with tM modules consists of commands
generated by the host and responses transmitted by the tM
modules. Each module has a unique ID number that is used
for addressing purposes and is stored in non-volatile memory.
The ID is 01 by default and can be changed using a user
command. All commands to the modules contain the ID
address, meaning that only the addressed module will respond.
The only exception to this is commands #** (Section 2.2) and
~** (Section 2.24), which are sent to all modules, but in both
of these cases, the modules do not reply to the command.
Command Format:
Leading
Character
Module
Address
Command [CHKSUM] CR
Response Format:
Leading
Character
Module
Address
Data [CHKSUM] CR
CHKSUM
A 2-character checksum which is present when
the checksum setting is enabled. See Sections
1.9 (Data Format Setting) and 2.1 for details.
CR
End of command character, carriage return
(0x0D)
tM Series DIO User Manual, Rev: A1.3 7PH-013-A13 36
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