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

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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

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Contents Rev 1 Page FCC Compliance Notice Page Table Of Contents Page Specifications Powering The MrldsMrlds Models Choosing a Mounting Location Mounting The SensorMrlds Dimensions Mrlds WiringNetwork Layout Refrigerant Jumper Settings Controller Setup For Analog Mrlds1 E2 Controllers Version 2.5 and Newer Refrigerant Type J2J1Mrlds Setup Mrlds WiringRmcc Controllers Mrlds Network AddressingAddress Settings Refrigerant Jumper SettingsModbus Address J5J4J3 Jumper Settings Mrlds TerminationMrlds Gateway Setup on I/O Network Mrlds GatewayGateway Connections Gateway BoardPowering the Gateway Board Wire ConnectionsInput Voltage Three-Board Six-BoardTermination Settings Gateway Board I/O Net AddressingSetting the Baud Rate Dip Switches Mrlds SetupHand-Held Terminal Set Tings Select ScreenController Setup for Modbus Mrlds Gateway TroubleshootingMapping The Mrlds as an Irlds Application Designating Mrlds as a 16AI BoardReflecs Setup for Irlds IIs 3 E2/Einstein ControllersRmcc Controllers Version 2.1 and Newer Press 2 to Set Device #’sSensor Setup Input DefinitionsSensor Setpoints E2 Alarming Irlds Mode2 16AI Mode Alarm Setpoints