Schneider Electric VW3 A3 303 user manual Configuration, Communication parameters

6. Configuration

6. 1. Communication parameters

Configure the following parameters in the [1.9 - COMMUNICATION] (COM-)menu, [Uni-Telway/Modbus](UtL-)submenu: [Protocol] (PrO), [Bit rate] (bdr) and [Format] (FOr).

These parameters can only be modified when the motor is stopped. Modifications can only be taken into account by the drive following a power break.

Parameter	Possible values	Terminal display	Default value
[Protocol]	Uni-Telway	[Unitelway] (UtE)	[Unitelway] (UtE)
(PrO)	Modbus/RTU	[Modbus RTU] (rtU)
	Modbus/ASCII	[Modbus ASCII] (ASC)
[Address]	0 to 247	[0] (0) to [247] (247)	Value taken from the address switches
(AdrC)
[Bit rate]	4800 bps	[4800 Bd] (4 8)	[19.2 Kbps] (19 2)
(Bdr)	9600 bps	[9600 Bd] (9 6)
	19,200 bps	[19200 Bd] (19 2)
[Format]	In RTU mode only:		[8-O-1] (8o1)
(FOr)	8 data bits, odd parity, 1 stop bit	[8-O-1] (8o1)
	8 data bits, even parity, 1 stop bit	[8-E-1] (8E1)
	8 data bits, no parity, 1 stop bit	[8-N-1] (8n1)
	8 data bits, no parity, 2 stop bits	[8-N-2] (8n2)
	In RTU and ASCII modes:
	7 data bits, odd parity, 1 stop bit	[7-O-1] (7o1)
	7 data bits, even parity, 1 stop bit	[7-E-1] (7E1)
	7 data bits, odd parity, 2 stop bits	[7-O-2] (7o2)
	7 data bits, even parity, 2 stop bits	[7-E-2] (7E2)

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