8.4 Communication example
8.4.1 Communication with Xinje PLC
Xinje PLC communicates with Xinje two drivers through 485, reads the speed of motor and writes
the torque limit of motor.
1. Hardware wiring: if the customer uses AB terminal of Xinje PLC for 485 communication, just
connect the 14 and 15 pins of the driver to AB terminal of PLC.
2. Parameter setting: the communication parameters of the driver and PLC are set in the same way,
such as baud rate, parity, data bit, slave station, etc. the communication protocols of the Xinje PLC and
servo are standard Modbus RTU, namely 19200bps, 1-8-1-even parity.
The setting parameters are as follows:
P7-00 Station No. 1, 2
P7-01.0 ~ 1 baud rate 06
P7-01.2 stop bit 2
P7-01.3 check bit 2
Note: if the communication parameter settings of the upper computer and the lower computer are
inconsistent, the communication will fail.
3. Software program: the register in which the station number, communication address and
contents are marked when writing instructions.
(1) Station number: the value set for servo driver P7-00. K1 indicates that P7-00 is set to 1; K2
indicates that P7-00 is set to 2.
(2) Communication address: the address of the servo slave station. For the address of a register,
please refer to Appendix 4. MODBUS address table.
(3) register: to store the paramter value of write in address.
(4) serial port no.: PLC RS485 serial port number.
To Next Page
Loading...
Need help?
General
