HMU8-860 ATS Remote Monitoring Controller User Manual Page 23 of 50
No.
Function
Size
Remark
15
PE3
Protective earth.
16
RS485-3
Terminal match
resistor (120Ω)
0.5mm
2
Reserved interface t.
It is recommended to use twisted shielding wire
with 120Ω impedance, whose single end is
grounded. Short connect terminal 16 and 18 and
connect 120Ω terminal resistor.
17
B(-)
0.5mm
2
18
A(+)
0.5mm
2
19
PE4
Protective earth.
20
RS485-4
Terminal match
resistor (120Ω)
0.5mm
2
Reserved interface.
It is recommended to use twisted shielding wire
with 120
Ω impedance, whose single end is
grounded. Short connect terminal 20 and 22 and
connect
120
Ω terminal resistor.
21
B(-)
0.5mm
2
22
A(+)
0.5mm
2
23
PE5
Protective earth.
NOTE1:
Slave USB interface (DEVICE) on controller side is used for upgrading controller firmware.
NOTE2:
Master USB interface (HOST) on controller side is used for updating controller display pictures and word
stock.
NOTE3:
ETHERNET interface on controller side is reserved interface.
5.2
CONNECTION DIAGRAM OF HUM8-860 AND HAT860
HAT860 master control module connects RS485-1 interface, HUM8-860 monitoring module
conntects RS485-2 interface.
Fig.14 – Connection Diagram of Monitoring Module and Master Control Module
