44
6.5.
RS485
RS485 with MODBUS protocol is used in a wide range of automation systems for Industrial Process moni-
toring or for Building Management Systems. This communication link allows monitoring UPS status and
measurements with such systems.
• A is inverting pin (TxD-/RxD-)
• B is non-inverting pin (TxD+/RxD+)
• Middle Pin is reference pin (optional GND)
Middle Pin is the reference potential used by the transceiver
to measure the A and B voltages.
The B line is positive (compared to A) when the line is idle.
The RS485 differential line consists of three pins:
Modbus End Jumper (J4):
If
the UPS is at the end of the bus;
the jumper should be moved to
right side to close the bus.
Communication Parameters
Baud Rate
2400
Data Bits
8
Stop Bits
1
Parity
No Parity
Flow Control
No Flow Control
Communication Type
RTU
Table.13
RS485
RS485
A
B
R24
R24
J4
J4
C18
C18
R22
R22
U1_485
•
U1_485
•
Summary of Contents for KEOR T
Page 1: ...KEOR T Installation Manual LE07544AA ...
Page 2: ...2 KEOR T ENGLISH 6 EN ...
Page 5: ...5 KEOR T Installation Manual Battery Fast Fuses Installation Operating Manuals ...
Page 32: ...32 Figure 5 3 1 4 1 Keor T 10 30kVA 1x60pcs 7 9Ah BATTERY WIRING DIAGRAM ...
Page 34: ...34 Figure 5 3 1 4 3 Keor T 40 60kVA 2x60pcs 7 9Ah BATTERY WIRING DIAGRAM ...
Page 50: ...50 SEPARATED RECTIFIER AND BYPASS INPUTS ...
Page 51: ...51 KEOR T Installation Manual COMMON RECTIFIER AND BYPASS INPUTS ...