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
3
4
6
5
2
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
2
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
AI
AI
AI
AI
00
10
20
30
01
11
21
31
02
12
22
32
03
13
23
33
NC
24 VDC
24 VDC
GND
GND
a1
a2
b2
b1
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
30
20
10
00
32
22
12
02
31
21
11
01
33
23
13
03
D
UA
E1
E2
Table 3. LED Indicators
LED LED Color LED Pattern Indication
D
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
D
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.
UA
Green Solid Supply to analog output module present.
— Off No supply to analog output modules.
E1
Red Solid Supply voltage is faulty.
— Off Supply voltage is present.
E2
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
+
–
x4
a1
a2
b1
b2
• 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
+
–
x4
a1
a2
b1
b2
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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