Delta Electronics CANopen Communication Module DVPCOPM-SL, Master CANopen, RS-485, IFD9503

CANopen Communication Module DVPCOPM-SL

M0

MOV	H0101	D6250	ReqID = 01, Command = 01
MOV	H0004	D6251	Size = 04
MOV	H0102	D6252	Type = 01, MAC ID = 02
MOV	H2021	D6253	Index = 2021
MOV	H0004	D6254	Sub index = 04
END

zProgram explanation

1.The program first reset the SDO request message editing area and SDO response message editing area to 0.

2.When M0 = On, CANopen master will send out SDO request message and read the contents in index 2021, sub index 4 of the target equipment (at node address 02). If the communication is successful, the slave will return with the response message.

3.When M0 = On, CANopen master will send out request message only once. If you would like it to send out messages again, you will have to change the ReqID.

4.The messages returned from the target equipment are stored in D6000 ~ D6005.

„Example II

zTarget:

When M0 = On, set the content in index 2047, sub index 2 (i.e. the control word of the target temperature) in IFD9503 to 0104Hex (i.e. 26.0°C). Please note that you have to write 0401Hex into D6255 of the PLC.

DVPCOPMDVP28SV

Node 1

CAN+RUN

SHLD

CAN-STOP

GND

Master

CANopen

Node 2

P V			°C
			°F
S V
AT	OUT	ALM1	ALM2
SET
			DTA4848
RS-485
IFD9503		DTA

DVP-PLC Application Manual 25