M-7084 User Manual, Rev. A1.3 7PH-013-A13
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4.1 Communicating with the module
If you attempt to communicate with the module and receive
no response, first check the following:
Ensure that the supplied power is within the range of +10
to +30 V DC. If the supplied power is OK, then the power
LED should be on.
When the module receives a command, the power LED is
set to “off”. The power LED is shown as “on” after the
module responds. This method can be used to check
whether the module has received a command sent from the
host.
If possible, use another device to check whether the host
can communicate with the device through the same RS-
485 network.
If the host is a PC installed with a Windows operating
system, then execute the DCON Utility to determine
whether the module can be found. The DCON Utility can
be downloaded from the ICP DAS website
. The DCON Utility
documentation can be found in the ”
Getting Started For
I-7000 Series Modules
” manual.
Set the module to “INIT mode” and communicate with the
module using the following settings: address 00, Baud
Rate 9600bps and no checksum. See Section A.1 for
details.
