Simplicity 514067-UAD-A-0509 manual Baud Rate Selection Settings, Modbus Connection

514067-UAD-A-0509

CONNECTION

The Simplicity®LINC has 2 ports, one for connection to the BAS network (BACnet) and one to the Simplicity® board (Modbus).

BACNET NETWORK

The only connection required in the field is to the BACnet (BAS) network.

NOTE: Proper termination and grounding of the shields must be observed.

DIP switches A0-A7 on the Simplicity®LINC board allow selection of the MAC Address. The MAC Address identifies the Simplicity®LINC to other devices and must be between 1 and 99. The default DIP switch setting is 1.

A Device Instance (DE) Modifier is used by the Simplicity®LINC and defaulted to 230. The combination of the DE Modifier and the default DIP switch setting creates a default DE of 23001.

The default Unit Name is YORK_RTU.

MAC Address of 21

A0	1	1 2	ON	1
A1	2			0
A2	4	3		4
A3	8	4		0
A4	16	5		16
A5	32	6		0
A6	64	7		0
A7	128	8		0
				21
	MAC Address of 99
A0	1	12	ON	1
A1	2			2
A2	4	3		0
A3	8	4		0
A4	16	5		0
A5	32	6		32
A6	64	7		64
A7	128	8		0
				99

FIGURE 2: MAC ADDRESS EXAMPLES

DIP switches B0-B3 on the Simplicity®LINC board allow for selection of the BACnet transfer speed.The default speed is set at 38.4k baud. Other speeds can be chosen as shown in Table 1.

TABLE 1: BAUD RATE SELECTION SETTINGS

DIP Setting	Baud Rate
1	110
2	300
3	600
4	1200
5	2400
6	4800
7	9600
8	19200
9	20833
10	28800
11	38400
12	57600
13	76800
14	115200

MODBUS CONNECTION

The UP device communicates with the Simplicity®LINC using the Modbus RTU protocol on an RS485 connection. Connection and addressing of the UP product is completed at the factory. No further adjustment should be done.

The default Simplicity® board address is 1. Do not engage the Address button on the Simplicity® board. This changes the address and causes a Modbus communication failure.

If a problem arises with the Simplicity®LINC or a parameter not exposed by the Simplicity®LINC requires modification, the UP controller software can be manipulated using a Microsoft© Windows-based PC with the Simplicity® PC software (downloadable from the UP website). To connect the PC to the UP controller, a FREEnet USB adaptor (Part No. S103101967000), which is an RS232 to RS485 adapter, and FREEnet adapter cable (S102538682000) are required and available through SOURCE1 (Toll-free at 1-800-536-6112).

SOFTWARE SETUP

The control sequence is managed by the Simplicity® controller. The data points on these systems are mapped to standard AV and BV BACnet Objects. As a preconfigured application, no configuration is necessary in the Simplicity®LINC Gateway.

2 Johnson Controls Unitary Products