National Instruments REM-11120 Bedienungsanleitung

GETTING STARTED GUIDE

NI REM-11120

Temperature Input Module for Remote I/O

This document explains how to connect to the REM-11120.

Note The guidelines in this document are specific to the REM-11120. The other

components in the system might not meet the same safety ratings. Refer to the

documentation for each component in the system to determine the safety and EMC

ratings for the entire system.

Caution Do not operate the REM-11120 in a manner not specified in this

document. Product misuse can result in a hazard. You can compromise the safety

protection built into the product if the product is damaged in any way. If the product

is damaged, return it to NI for repair.

Isolation Withstand Voltages

Test section Test voltage

5 V communications power (logic), 24 V supply (I/O) 500 VAC, 50 Hz, 1 min.

5 V supply (logic) / analog inputs 500 VAC, 50 Hz, 1 min.

5 V supply (logic) / functional earth ground 500 VAC, 50 Hz, 1 min.

24 V supply (I/O) / analog inputs 500 VAC, 50 Hz, 1 min.

24 V supply (I/O) / functional earth ground 500 VAC, 50 Hz, 1 min.

Analog inputs / functional earth ground 500 VAC, 50 Hz, 1 min.

Electromagnetic Compatibility Guidelines

This product was tested and complies with the regulatory requirements and limits for

electromagnetic compatibility (EMC) stated in the product specifications. These requirements

and limits provide reasonable protection against harmful interference when the product is

operated in the intended operational electromagnetic environment.

This product is intended for use in industrial locations. However, harmful interference may

occur in some installations, when the product is connected to a peripheral device or test object,

or if the product is used in residential or commercial areas. To minimize interference with

radio and television reception and prevent unacceptable performance degradation, install and

use this product in strict accordance with the instructions in the product documentation.

Furthermore, any changes or modifications to the product not expressly approved by National

Instruments could void your authority to operate it under your local regulatory rules.

Preparing the Environment

Ensure that the environment in which you are using the REM-11120 meets the following

specifications.

Operating temperature -25 °C to 60 °C

Operating humidity 5% RH to 95% RH, noncondensing

Pollution Degree 2

Maximum altitude 3,000 m

2| ni.com | REM-11120 Getting Started Guide

Indoor use only.

Note Refer to the device datasheet on ni.com/manuals for complete specifications.

Verifying the Kit Contents

Verify that the following items are included in the REM-11120 kit.

Figure 1. REM-11120 Kit Contents

12 3 4

1. NI REM-11120

2. Bus connector

3. Supply voltage connector

4. Spring-terminal block (x2)

Unpacking the Kit

Caution To prevent electrostatic discharge (ESD) from damaging the device,

ground yourself using a grounding strap or by holding a grounded object, such as

your computer chassis.

1. Touch the antistatic package to a metal part of the computer chassis.

2. Remove the device from the package and inspect the device for loose components or any

other sign of damage.

Caution Never touch the exposed pins of connectors.

Note Do not install a device if it appears damaged in any way.

3. Unpack any other items and documentation from the kit.

Store the device in the antistatic package when the device is not in use.

REM-11120 Getting Started Guide | © National Instruments | 3

Installing the REM-11120

Figure 2. Structure of the REM-11120

1. Bus connector

2. REM-11120

3. Module function label

4. Supply voltage connector

5. Spring-terminal block

6. LED indicators

Table 1. Module Function Labels

Label Color Module Function

Blue Digital input

Red Digital output

Green Analog input, thermocouple

Yellow Analog output

White Bus coupler, power module

Installing Bus Connectors

What to Use

• Bus connector

• DIN rail

What to Do

Complete the following steps to install bus connectors on the DIN rail.

4| ni.com | REM-11120 Getting Started Guide

1. Insert the bus connector for the REM-11120 into the DIN rail.

Caution Verify that you are using the correct bus connector for the module

width.

2. Slide the bus connector along the DIN rail until it connects to the preceding bus

connector.

Note A bus connector will not attach to a preceding bus connector with a

mounted module. Remove the preceding module before installing additional

bus connectors.

3. Repeat Steps 2 and 3 for additional bus connectors.

Installing the Module

Note For best performance, NI recommends installing temperature modules at the

end of the Remote I/O system. Increase typical measuring tolerance up to 0.9 K in

temperature modules installed next to a bus coupler.

What to Use

• REM-11120

• Mounted bus connector

What to Do

Complete the following steps to install the REM-11120 on the DIN rail.

REM-11120 Getting Started Guide | © National Instruments | 5

Note When using the Remote I/O Shield Set, install the shield rail supports before

mounting the module.

1. Align the REM-11120 over the appropriate bus connector.

Note Verify that the bus connector socket aligns with the socket on the

underside of the module.

2. Press the REM-11120 directly onto the bus connector and DIN rail until it clicks into

place.

Caution Tilting the module when mounting it on the DIN rail will damage the

contacts.

Installing Spring-Terminal Blocks

What to Use

• REM-11120

• Spring-terminal block

What to Do

Align the spring-terminal block over the REM-11120 and press until it clicks into place.

6| ni.com | REM-11120 Getting Started Guide

REM-11120 Pinout

24 VDC

GND

Table 2. REM-11120 Signal Descriptions

Signal Color Description

a1, a2 Red 24 VDC (UA) Analog module supply (internally jumpered)

b1, b2 Blue GND Reference potential of the supply voltage (internally

jumpered)

REM-11120 Getting Started Guide | © National Instruments | 7

Table 2. REM-11120 Signal Descriptions (Continued)

Signal Color Description

00, 02 Orange CJ0+, CJ1+ External cold junction input (+)

01 — No connection

10, 12 CJ0-, CJ1- External cold junction input (-)

11 — No connection

03 AI+ Voltage input 5 V (+)

13 AI- Voltage input 5 V (-)

20 to 23 TC0+ to TC3+ Thermocouple (+)

30 to 33 TC0- to TC3- Thermocouple (-)

Figure 3. REM-11120 LEDs

Table 3. LED Indicators

LED LED Color LED Pattern Indication

Green

Solid The REM-11120 is ready for operation.

Flashing Data is invalid or unavailable.

Green/Yellow Flashing The REM-11120 cannot communicate with the

connected devices.

8| ni.com | REM-11120 Getting Started Guide

Table 3. LED Indicators (Continued)

LED LED Color LED Pattern Indication

Yellow

Solid The REM-11120 did not detect a valid cycle after

power-on.

Flashing The REM-11120 is not part of the configuration.

Red

Solid The REM-11120 has lost connection to the Bus

Coupler.

Flashing The REM-11120 has lost connection to the preceding

adjacent module.

— Off The REM-11120 is in reset mode.

Green Solid Supply to analog output module present.

— Off No supply to analog output modules.

Red Solid Supply voltage is faulty.

— Off Supply voltage is present.

Red Solid I/O or channel error has occurred.

— Off No error

10 to 13

Orange Flashing Channel scouted

Red Solid Open circuit, overrange or underrange or voltage UA

not present

Green Solid Normal operation

— Off Channel set to inactive

Table 4. Error Status of E1 and E2 LEDs

Error E1 LED E2 LED

No error Off Off

Underrange Off On

Overrange Off On

Supply voltage faulty On On

Parameter table invalid Off On

REM-11120 Getting Started Guide | © National Instruments | 9

Table 4. Error Status of E1 and E2 LEDs (Continued)

Error E1 LED E2 LED

Device error Off On

Flash format error Off On

Note The reported error depends on the measuring range. For information about

input scaling, refer to the device datasheet on ni.com/manuals.

Connecting a Thermocouple

Figure 4. Absolute Temperature Measurement

24 VDC TC+ (0:3)

TC– (0:3)

Thermocouple

REM-11120

–

• Each channel can connect to a separate thermocouple.

• Internal cold junction compensation determines the measuring temperature.

Figure 5. Differential Temperature Measurement

24 VDC TC+ (0:3)

TC– (0:3)

Thermocouple 1

REM-11120

–

Shield

Thermocouple 2

• To determine exact differential temperature, connect two thermocouples in series to one

channel.

10 | ni.com | REM-11120 Getting Started Guide

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