Hart +

Rosemount 5300/5400 Series

00809-0500-4530, Rev AA October 2010

Connection Terminals The connection terminals are described in Table 1-1below:

Table 1-1. Connection Terminals

Connector label	Description	Comment
HART +	Positive HART connector	Connect to PC with RRM
		software, Field
HART -	Negative HART connector	Communicator, or other
		HART configurators.
MA	Modbus RS-485 B connection
MA	(RX/TX+)(1)
	(RX/TX+)(1)	Connect to RTU
MB	Modbus RS-485 A connection	Connect to RTU
	Modbus RS-485 A connection
	(RX/TX-)(1)
POWER +	Positive Power input terminal	Apply +8 Vdc to +30 Vdc
POWER -	Negative Power input terminal	(max. rating)

(1)The designation of the connectors do not follow the EIA-485 standard, which states that RX/TX- should be referred to as 'A' and RX/TX+ as 'B'.

Figure 1-3. Connection Terminals for Rosemount 5300/5400 with HART to Modbus Converter

HART to Modbus Converter

HART -

1-6