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Emerson ROC827 User Manual

Page 4

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Issued Mar-06

iv

2.8

Startup and Operation ....................................................................................................2-19

2.8.1

Startup ..............................................................................................................2-20

2.8.2

Operation..........................................................................................................2-20

Chapter 3 – Power Connections

3-1

3.1

Power Input Module Descriptions.....................................................................................3-1

3.1.1

12-Volt DC Power Input Module (PM-12)...........................................................3-1

3.1.2

24-Volt DC Power Input Module (PM-24)...........................................................3-3

3.1.3

Auxiliary Output (AUX+ and AUX–)....................................................................3-4

3.1.4

Switched Auxiliary Output (AUXSW+ and AUXSW–) ........................................3-6

3.2

Determining Power Consumption.....................................................................................3-7

3.2.1

Tuning the Configuration ..................................................................................3-11

3.3

Removing a Power Input Module ...................................................................................3-20

3.4

Installing a Power Input Module .....................................................................................3-21

3.5

Connecting the ROC827 to Wiring .................................................................................3-21

3.5.1

Wiring the DC Power Input Module..................................................................3-22

3.5.2

Wiring the External Batteries............................................................................3-23

3.5.3

Replacing the Internal Battery ..........................................................................3-25

3.6

Related Specification Sheets..........................................................................................3-26

Chapter 4 – Input/Output Modules

4-1

4.1

I/O Module Overview ........................................................................................................4-1

4.2

Installation.........................................................................................................................4-3

4.2.1

Installing an I/O Module......................................................................................4-4

4.2.2

Removing an I/O Module....................................................................................4-5

4.2.3

Wiring I/O Modules.............................................................................................4-6

4.3

Analog Input Modules.......................................................................................................4-6

4.4

Analog Output Modules ....................................................................................................4-8

4.5

Discrete Input Modules.....................................................................................................4-9

4.6

Discrete Output Modules ................................................................................................4-10

4.7

Discrete Output Relay Modules......................................................................................4-11

4.8

Pulse Input Modules .......................................................................................................4-12

4.9

RTD Input Modules.........................................................................................................4-14

4.9.1

Connecting the RTD Wiring..............................................................................4-15

4.10

J and K Type Thermocouple Input Modules ..................................................................4-16

4.11

Related Specification Sheets .........................................................................................4-21

Chapter 5 – Communications

5-1

5.1

Communications Ports and Modules Overview ...............................................................5-1

5.2

Installing Communication Modules ..................................................................................5-3

5.3

Removing a Communications Module .............................................................................5-4

5.4

Wiring Communications Modules ....................................................................................5-5

5.5

Local Operator Interface (LOI) .........................................................................................5-5

5.5.1

Using the LOI .....................................................................................................5-7

5.6

Ethernet Communications................................................................................................5-7

5.7

EIA-232 (RS-232) Serial Communications ......................................................................5-9

5.8

EIA-422/485 (RS-422/485) Serial Communications Module .........................................5-10

5.8.1

EIA-422/485 (RS-422/485) Jumpers & Termination Resistors ........................5-11