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ABB REF 542plus Technical Reference Manual

ABB REF 542plus
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47
6.5. Interfaces
HMI control unit
*
Serial infrared (IrDa)/electrical RS-232 interface to a PC (at the front)
*
Electrically isolated RS-485 standard interface to the base unit (at the rear)
*
Electrical standard interface RJ-45 for Modbus TCP and/or the embedded WEB
server
*
Power supply
Base unit
*
Electrically isolated RS-485 standard interface to the HMI
*
RS-232 standard service interface (service port for updating configuration and
firmware)
*
Power supply
0/4 ... 20 mA analog output module (optional)
*
Four output channels 0 to 20 mA or 4 to 20 mA, freely configurable.
4 ... 20 mA analog input module (optional)
*
Six input channels 4 ... 20 mA
Communication to a station automation system (optional)
*
SPA, optical plastic fiber interface with snap-in type connector; or glass fiber
(multi mode) with F-SMA or ST connectors
*
LON (according to ABB LAG1.4), glass fiber (multi mode) optical interface
with ST connectors
*
IEC 60870-5-103 with extension according to VDN guidelines for controlling,
glass fiber (multi-mode) optical interface with ST connectors
*
Modbus RTU/SPAbus electrical interface with two galvanically insulated SPA-
bus RS-485 ports or optical interface with four standard ST connectors for glass
fiber (multi-mode)
*
IEC 61850 electrical interface with two RJ45 connector or optical interface with
two pair LC connector for glass fiber (50/125 µm multi-mode fiber)
Multifunction Protection and Switchbay Control
Unit
Technical Reference Manual
REF 542plusREF 542plus
1MRS755859

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ABB REF 542plus Specifications

General IconGeneral
BrandABB
ModelREF 542plus
CategoryControl Unit
LanguageEnglish

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