21 Install the D2–DCM and Starting the Network

21 Install the D2–DCM and Starting the Network
21
21
Install the D2–DCM/Starting the Network
Install the D2–DCM and Starting the Network
Install the D2–DCM
The D2–DCM can go in any slot of a DL205 base except Slot 0, which is right next to
the CPU. The D2–DCM will not work in Slot 0.
If you’re using a D2–DCM as the network interface in a PLC master station,
remember to make a note of the slot location. (You will have to refer to this address at
some point.)
NOTE: The D2–DCM can not be mounted in a base that does not contain a
D2–240/250–1/260 CPU. Also, the D2–DCM requires 300mA of +5V base power.
Make sure you will not exceed the available base power budget by installing the
D2–DCM. See the DL205 User Manual for complete details on power budget
calculations.
WARNING: Your system can be damaged if you install or remove system
components before disconnecting the system power. To minimize the risk of
equipment damage, electrical shock, or personal injury, always disconnect the
system power before installing or removing any system component.
To insert the module into the base, align the circuit board(s) with the grooves on the
top and bottom of the base. Push the module straight into the base until it is firmly
seated in the backplane connector. Once the module is inserted into the base, push
in the retaining clips (located at the top and bottom of the module) to firmly secure the
module to the base.
Align module to
slots in base and slide in
Push the retaining
clips in to secure the module
to the DL205 base
Connect the Cables
Make sure you have all the cables connected and that all the network devices have
the same communication parameters (baud rate, parity, etc).
If you’re using
DirectNET...
The PLC master station must contain an RLL program that has the appropriate RX or
WX instructions necessary to initiate the communications. (See Appendix B for
details on the RX and WX instructions). The master station CPU must be in Run
mode in order to execute the communications program. The slave station CPUs do
not absolutely have to be in Run mode because the D2–DCM will still transfer the
data. Whether you put the slave stations in Run mode depends on your application
requirements.
Data Communications Module, 2nd Edition, 2/03
22
Install the D2–DCM/Starting the Network
If you’re using an
Connect the cables and follow the procedures outlined in the documentation that
Operator Interface or came with your host computer software or operator interface. You’ll have to execute
Host Computer...
your host or operator interface program before the communications can begin. For
example, if you’re using DirectSOFT32, you can just specify the station address and
start working!
If you’re using
MODBUS...
Connect the cables and follow the procedures outlined in your MODBUS Host
software package to start the communications. See Appendix C for more
information on using the D2–DCM with MODBUS protocol.
Data Communications Module, 2nd Edition, 2/03
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement