Bryant 551J installation instructions Local Access, RTU-MP Troubleshooting Communication LEDs

SW3 Protocol Selection

PROTOCOL		DS8	DS7	DS6	DS5	DS4	DS3	DS2	DS1
BACnet MS/TP		Unused	OFF	OFF	OFF	ON	OFF	Select Baud	Select Baud
(Master)
Modbus		Unused	OFF	OFF	ON	ON	OFF	Select Baud	Select Baud
(Slave)
N2		Unused	OFF	OFF	OFF	ON	ON	OFF	OFF
(Slave)
LonWorks		Unused	ON	ON	OFF	ON	OFF	OFF	OFF
NOTE:
DS = Dip Switch
BACnet MS/TP SW3 example shown
	Baud Rate Selections
BAUD RATE		DS2		DS1
9600		OFF		OFF
19,200		ON		OFF
38,400		OFF		ON
76,800		ON		ON					C07166

Fig. 52 - RTU-MP SW3 Dip Switch Settings

551J

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Local Access

BACview6 Handheld

The BACview6 is a keypad/display interface used to connect to the RTU-MP to access the control information, read sensor values, and test the RTU, see Fig. 53. This is an accessory interface that does not come with the MP controller and can only be used at the unit. Connect the BACview6 to the RTU-MP’s J12 local access port. There are 2 password protected levels in the display (User and Admin). The user password is defaulted to 0000 but can be changed. The Admin password is 1111 and cannot be changed. There is a 10 minute auto logout if a screen is idle. Contact your Bryant applications engineer for details on navigation and screen content.

Virtual BACview

Virtual BACview is a freeware computer program that functions as the BACview6 Handheld. The USB Link interface (USB-L) is required to connect a computer to the RTU-MP board. The link cable connects a USB port to the J12 local access port. This program functions and operates identical to the handheld.

RTU-MP Troubleshooting

Communication LEDs

The LEDs indicate if the controller is speaking to the devices on the network. The LEDs should reflect communication traffic based on the baud rate set. The higher the baud rate the more solid the LEDs will appear.

C07170

Fig. 53 - BACview6 Handheld Connections

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