DeviceNet Slave Communication Card CMC-DN01
DVP-PLC Operation Manual
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DVPDNET-SL module and how they exchange data with each other. (Figure 4.1.1) The DVPDNET-SL
module is the DeviceNet master, and the VFD-C2000 series AC motor drive is connected to the DeviceNet
network through CMC-DN01 and further used as the DeviceNet slave.
4.1 Data Exchange in DeviceNet
DVPDNET-SL
DVP-SV
DeviceNet bus
C2000 series AC motor drive
I/O data exchange
[Figure 4.1.1: Data exchange in DeviceNet]
(Figure 4.1.1) The DVP-SV series PLC and DVPDNET-SL are exchanging real-time data with each
other. When the data in DVP-SV are sent to DVPDNET-SL, the data in DVPDNET-SL will be sent to DVP-SV,
too. According to the I/O connections established (see 4.3 for details on I/O connections), DVPDNET-SL will
send the data received from DVP-SV to the VFD-C2000 series AC motor drive, and VFD-C2000 will send its
data back to DVPDNET-SL.
See 4.2 for how the data received from DVP-SV are sent to the parameters in the AC motor drive.
4.2 Mapping of CMC-DN01
The VFD-C2000 series AC motor drive is connected to the DeviceNet network through CMC-DN01.
Once CMC-DN01 receives the I/O data outputted from the DeviceNet master, it will next send these data to
parameters in the AC motor drive. The parameters in the AC motor drive to receive these data are
determined by the mapping relation set in CMC-DN01, and the setup is done by using the DeviceNet Builder
software.
Open the “Parameter Edit…” page in DeviceNet Builder (Figure 4.2.1) and you can see parameters
“Length of input data”, “Length of output data”, “Data_in[1]” and “Data_out[1]”. See Table 4.2.1 for the
definitions of these parameters. The “Parameter Edit…” page supports only decimal values; therefore, we
have to convert the value into decimal form before filling it into the value column.
Parameter
Definition
Length of input data
Number of the AC motor drive parameters sent back to
