Ud Link (User-Defined Link) - Delta DVPSCM Series Operation Manual

Communication Module DVPSCM12/52-SL
Transmitter Delay:
Transfer Mode:
Communication Retry Times:

6.3 UD Link (User-defined Link)

UD Link provides non-Modbus RS-485/RS-422 link function. The packets can be edited according to the
communication formats. The steps of establishing UD Link are as follows:
(1) Create a group Edit TX packets and RX packets
instructions as a group
(2) Create a group Edit TX packets and RX packets
Create sequences
First of all, establish the transmission instructions (TXs) and the reception instructions (RXs) in the group.
Then, set the execution sequence and the number of times for TXs and RXs through the commands.
Finally, trigger and execute the instructions as a group. In addition, if various groups of group packets are
required in a large system, the user can create the groups in the sequences, and set the execution
sequence.
24
The default time interval between the instructions is 0 ms, that is, the
next instruction is transmitted immediately after the reply is received.
ASCII or RTU
It means the number of times the communication has been retried
after the communication fails. If there is still no response, the
communication stops.
Trigger and execute the instructions as sequences
Create commands Trigger and execute the
Create commands Create other groups
DVP-PLC Operation Manual