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2 DCON Protocol
All communication with I-87K modules consists of commands
generated by the host and responses transmitted by the I-87K
modules. Each module has a unique ID number that is used for
addressing purposes and is stored in nonvolatile memory. The ID is
00 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
are the commands #** (Section 2.2) and ~** (Section 2.27), which
are sent to all modules, but in both of these cases, the modules do
not reply to the command.
Command Format
Leading
Character
Response Format
Leading
Character
CHKSUM
A 2-character checksum which is present when the
checksum setting is enabled. See Sections 1.10 (Data
Format Setting) and 2.1 for details.
CR
End of command character, carriage return (0x0D)
Module
Command
Address
Module
Address
27/93 I-87211W User Manual V2.5, Oct. 2010
[CHKSUM]
Data
[CHKSUM]
I-87211W User Manual
CR
CR
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