15
HMI user program
setting
for this cable
In the HMI user project, set the COM2 port as "RS232";
The HMI and PLC must have the same communication protocol and
data format settings.
■
Precautions on Communication Connection
1)
Cable requirements: Different cables are required for the connection of
different external devices. Do not lay the communication cables together with
the AC power cables or near electrical noise sources. Do not plug/remove the
communication cables during communication.
2) To prevent communication faults, ensure that the communication cables for
connecting the RS485/RS422 device and RS232 device do not exceed 150 m
and 15 m respectively.
3) In case of communication failure, the screen displays “Connection failed:
connection_1, station 1. err:10001” until the communication is established.
4) If the communication cable is long or passes through an environment with
electrical noise, use a shielded cable.
■
USB Port
Mini USB: used to connect the PC with a universal USB communication cable, to
upload/download user configuration program and set HMI system parameters;
Type A: used to connect a USB drive, USB mouse or USB keyboard, plug and play.
■
Ethernet Connection
The 10M/100M adaptive Ethernet port, located on the back of the equipment, can
be used for:
1. HMI configuration upload/download, system parameter setting and on-line
configuration simulation;
2. Connection with multiple HMIs to achieve multi-HMI online communication;
3. Communication with the PLC;
4. Connection with a HUB or Ethernet switch through a standard Ethernet cable
to join a LAN, or connection with the Ethernet port of a PC through a crossover
cable. Note: Use a shielded cable to ensure stable communication.
