AEG PV.500-MH Description of serial interfaces, LED signals, Green/red flashes, Green on, Red on

Protect PV.500_MH Operating Instructions

LED signals:
Green/red flashes:	Configuration can be selected via the ter-
	minal
	(up to 30 seconds after restarting)
Green on:	Operating status; no external communica-
	tion via X2 and X5
Green flashes:	Data transmission on the serial interfaces
	(X2 or X5)
Red on:	Fault

Description of serial interfaces:

Port 1: Serial interface X2

The potential-free RS232 serial interface at connector X2 supports the AEG-specific CBSER protocol for parameter setting and moni- toring purposes. Special service tools can be used to monitor and manage the equipment locally and (with the aid of the COM serv- er) remotely via a network. This is also the port used for configur- ing the assembly's interfaces.

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Figure 14 Serial D-sub connector X2
Port 1 (X2): RS232 pin assignment
Pin number	Signal	Description
2	RxD	PC receiving data from the MCC
3	TxD	PC sending data to the MCC
5	GND	Interface reference potential
Housing		INV housing potential

Please use a 1:1 data cable for configuration purposes.

Port 2: Serial interface X5 (internally wired to X91)

The potential-free RS485 interface at connector X5 supports the Modbus protocol for integration into higher-level monitoring sys- tems.

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