10
3 Electrical Design Reference
3.1 Terminal Description
#BDL7JFX
'SPOU7JFX
4JEF7JFX
#BDL7JFX EFUBJM
No.
Name
Description
No.
Name
Description
(1)
Power
supply
terminal
HMI 24 VDC power input
terminal
(A power connector is
included in the delivery)
(6)
Mini USB
port
The slave USB
communication port to
download and debug user
programs in a PC
(2)
DB9 male
connector
Communication port
between HMI and
peripherals
Built-in COM1, COM2 and
COM3 serial communication
ports
(For IT7070S, only COM1 is
available;
for IT7070T, only COM1 and
COM2 are available)
COM1: RS422 or RS485
COM2: RS232
COM3: RS485
(7)
Firmware
upgrade
port
For firmware upgrade