Emerson MRLDS Address Settings, Mrlds Termination, Refrigerant Jumper Settings, Modbus Output

4.2.3Address Settings

the J2 or J1 sockets respective per the inside label.

Modbus Address	J5J4J3
Jumper Settings
100
	No jumpers installed
101
102
103
104
105
106
107
108
109
110
111

Table 4-1- MRLDS Modbus Address Jumper Settings

J6 J1

J6 J5 J4 J3 J2 J1
term	network	refrigerant
jumper	address	type
	jumpers	jumpers

Figure 4-4- Modbus Jumper Layout (Inside Lower Portion of Cover) Enlarged To Show Detail

Refrigerant Type J2J1

R-22

R-404A

R-134A

Table 4-2- Refrigerant Jumper Settings

4.2.5MRLDS Termination

The MRLDS has a built-in, on-board means of termi- nation, so an external termination block is not necessary for terminating. When the device is located at the end of a daisy chain, jumper JP6 for termination.

4.2.4Refrigerant Jumper Settings

The jumper settings for refrigerant types are located on the label inside the MRLDS sensor cover (shown in Fig- ure 1-1). Set the jumpers according to how they are indi- cated on the label.

The MRLDS supports three different refrigerant types. Select the desired refrigerant type by setting one jumper to

J6 J1

Termination jumper

J6 J5 J4 J3 J2 J1

Figure 4-5- MRLDS Termination (Inside Lower Left of Cover)

4.2.6Modbus Output

See Table 4-3below for Modbus registers in the MRLDS Unit. Baud rate: 19,200; each byte is 8 (eight)

6 • MRLDS I&O Manual 026-1307 Rev 1 11-30-07