DVP-15MC Series Motion Controller Operation Manual
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6. If you choose to read and write the bit register of the slave, the %MW and %QW registers of the local
device can be regarded as the storage registers for reading and writing data. The ranges of the
storage register are %MW0~%MW32767 and %QW0~%QW63. If the ranges are exceeded or other
register is used, an error will occur in the instruction.
7. The set parameter values of this instruction are only valid during the operation of the PLC. When the
motion controller is repowered after power off, the parameters configured before the power off are all
invalidated. The ETH_Link_Config instruction must be re-executed if the configuration before the
power off is needed to use.
8. When the bit registers of the slave are read, the value of Read_FunCode must be set to 01 or 02.
You can select the function code according to the type of the bit register through referring to the
corresponding module manual.
9. Set the communication mode via the input parameter Noncyclic. The communication mode is the
cyclic communication mode if Noncyclic is set to FALSE. The communication mode is the non-cyclic
communication mode if Noncyclic is set to TRUE.
a. Cyclic Communication Mode: When the current Link is set as cyclic communication mode. The
configuration for the Link will be effective immediately and the data exchange between the
master and slave will be conducted cyclically after RS485 communication function is enabled
via RS485_Link_Manage instruction.
The configuration for the link will not be executed and the data exchange with the slave will stop
after RS485 communication function is disabled via RS485_Link_Manage instruction.
b. Non-Cyclic Communication Mode: When the current Link is set as non-cyclic communication
mode. The configuration for the Link will be effective immediately and the data exchange
between the master and slave will be conducted only once after RS485 communication function
is enabled via RS485_Link_Manage instruction.
If the data exchange between the master and the slave is to be made once again, re-enable
RS485 communication function after RS485 communication function is disabled via
RS485_Link_Manage instruction.
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