3.1. GRAPHICAL HMI CONTROLLER (GHC) DISPLAY HARDWARE
The GHC Display is shown as in FIGURE 7. The GHC is interconnected to the SCU via a plug-
in USB cable. The main features of the GHC Display are described as follows with reference to
FIGURE 7.
FIGURE# 7
1. RS232 Communication Port #1: This port is utilized for Modbus RTU Serial communication
2. RS232 Communication Port #2: This port is utilized RS232 Serial communication
3. USB Communication Port #1: This port is utilized for communication from GHC to TSC 900 SCU
module.
4. Ethernet Communication Port: This port is utilized for Modbus TCP Ethernet communication
5. USB Communication Port #2: This port is utilized for customer use.
6. USB Communication Port #3: This port is utilized for customer use.
7. SD Memory Card Slot: This is used for program operation and memory storage