CANopen Communication Module DVPCOPM-SL 4.2 Data Mapping in CANopen Network Data mapping in DVP-12SA DVP-08ST, connected on the right hand side of DVP-12SA, offers 8 channels of digital input and 1 byte of input data. In this example, we will use X0 and X1 on DVP-08ST to RUN/STOP ASD-B and select speed. Y0 is for the output signal of ASD-B operational status. See the table below for more information. Supposed IFD9503 is connected to DVP-12SA and exchanging data with DVPCOPM-SL master, the default length of input data is 8 bytes and output data is 8 bytes. D256 in DVP-12SA is the start device for input data, and D0 is the start device for output data.
To realize the control function of X0, X1 and X2, we place the statuses of X0 ~ X2 to bit 0 ~ 2 of D256. That is, when X0 = On, bit 0 of D256 will become 1. When X1 = On, bit 1 of D256 will become 1. In this way, we can realize the control of RUN, STOP and speed of ASD-B by the changes in D256 through WPLSoft. The status word in ASD-B will then be sent to D0. That is, when bit 0 of D0 becomes 1, there will be signals at Y0. I/O data area for DVPCOPM-SL master: DVP-PLC Operation Manual 13 Channel Function X0 Controlling RUN/STOP of ASD-B X1, X2 Selecting the speed of ASD-B:
X2 = 0, X1 = 1, selecting SP1 X1 = 1, X2 = 0, selecting SP2 X1 = 1, X2 = 1, selecting SP3 Y0 Operational status of ASD-B: On: RUN Off: STOP D register 15 14 13 12 11 10 9 8 7 6 5 4 3u,3 2 1 0 Input data D6032 D256 X2 X1 X0 D6033 D257 D6034 D258 D6035 D259 … Output data D6282 D0 Y0 D6283 D1 D6284 D2 D6285 D3 …