INVT Goodrive350 Series Operation Manual page 33

Goodrive350 series VFD Auto Station programmable expansion card Auto Station programming interfaces
Function
Function name
code
The following describes the communication channel between the PLC card and
DP/CANopen/PN card. The PLC card defines two groups of PZD channel, used for writing and
read, and each group has 24 PZD channels. The writing channels are used to send data from
the DP/CANopen/PN card to the PLC card for secondary programming and then send the
processed data to the VFD. The reading channels are used to send data from the VFD to the
PLC card for secondary programming and then send the processed data to the
DP/CANopen/PN card. The following figure shows how the data is transferred.
Figure 4.11 Data transfer between the PLC card and DP/CANopen/PN card
As shown in the figure, the host computer sends data by using the writing channels.
① The host computer sends data to the DP/CANopen/PN card.
② After parsing the data from the host computer, the DP/CANopen/PN card encapsulates the
data into frames and sends the frames to PZD1–12 on the DSP. This group of PZD are
transferred to the corresponding elements D7424–D7435 (corresponding to Auto Station
Description
3: 36+24+60
4: 48+24+60
5: 60+48+60
6: 72+24+60
7: 84+24+60
8: 96+96+96
Tens place: Card that communicates with
the programmable card through PZD
(valid only when the ones place of P27.26
is 5)
0: DP card
1: CANopen card
2: PN card
Note: P27.26 can be changed at any time,
but the change takes effect only after
re-power on.
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Default Modify