IV405E Rev.000 SIEL S.p.A.
Data di emissione: 2018-06-22
Pag. 48 di 50 + FR
Appendix 5 RS485 communication port definition
Definition of port
᧶
Connection between the Device
’s RS485 port and UPS RS485 port.
device(RJ45)
UPS(RJ45)
Description
Pin 1/5
Pin 1/5
485+
“
A
”
Pin 2/4
Pin 2/4
485 -
“
B
”
Pin7
Pin7
+12Vdc
Pin8
Pin8
GND
Available function of RS485
Ⴗ
Monitor UPS power status.
Ⴗ
Monitor UPS alarm info.
Ⴗ
Monitor UPS running parameters.
Ⴗ
Timing off/on setting.
Ⴗ
Battery environment temperature monitoring.
Ⴗ
Charging voltage modulation depending on batteries temperature
Communication data format
Baud rate ---------- 9600bps
Byte length ---------- 8bit
End bit ---------- 1bit
Parity check ---------none
CAUTION!
USB, RS232 and RS485 interface cannot be used at the same time,
you can only use one of them at one time.
RS485 port pin7 is 12Vdc!