National Instruments FieldDAQ FD-11637 User Manual

8-channel strain/bridge input device for fielddaq

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Summary of Contents for National Instruments FieldDAQ FD-11637

Page 1 FD-11637...
Page 2 ™ 8-Channel Strain/Bridge Input Device for FieldDAQ The FieldDAQ FD-11637 is an IP65/IP67-rated eight-channel strain/bridge input device that includes all the signal conditioning required to power and measure up to eight bridge-based sensors simultaneously. It can be networked and synchronized with IEEE 802.1AS devices.
Page 3 Contents FD-11637 Basic Information....................3 Safety Guidelines........................4 Electromagnetic Compatibility Guidelines................5 Special Conditions for Marine Applications..............5 Unpacking..........................5 Hardware Symbol Definitions....................6 What You Need to Get Started....................6 Setting up the FieldDAQ Device....................7 Power Connectors and Wiring....................11 Power Connectors......................
Page 4 FieldDAQ accessories and ordering information, refer to the pricing section of the FD-11637 product page at ni.com. Table 2. FD-11637 Cables and Accessories Cable/Accessory Part Number IP67 Power Supply 147464-01 PS-16 Power Supply 781094-01 FD-11637 User Guide | © National Instruments | 3...
Page 5 If the product is damaged, return it to National Instruments for repair. The FD-11637 is rated for use in DRY or WET LOCATIONS. Hazardous voltages may not be connected to the device.
Page 6 Ground yourself with a grounding strap or by touching a grounded object. • Touch the antistatic package to a metal part of your computer chassis before removing the device from the package. FD-11637 User Guide | © National Instruments | 5...
Page 7 At the end of the product life cycle, all NI products must be disposed of according to local laws and regulations. For more information about how to recycle NI products in your region, visit ni.com/environment/weee. National Instruments 符合中国电子信息产品中限制使用某些有害物中国客户质指令(RoHS)。关于 National Instruments 中国 RoHS 合规性信息，请登录。(For information about China RoHS ni.com/environment/rohs_china compliance, go to ni.com/environment/rohs_china What You Need to Get Started You will need the following items to set up your FieldDAQ device.
Page 8 Carefully align and connect one end of the Ethernet cable to Ethernet port 0 on the device, and the other end directly to your computer or any network connection on the same subnet as your computer. FD-11637 User Guide | © National Instruments | 7...
Page 9 Power the device by carefully aligning and connecting the power IN port on FieldDAQ to an external 9 V DC to 30 V DC power source with the 5-pin L-coded M12 power cable. For information about wiring your external power source to the power connector, refer to Wiring External Power to the FieldDAQ Device.
Page 10 Enter the hostname of the device. The default hostname is FD11637- <serial number>. Click Add Selected Devices. The FieldDAQ device icon changes from white to dark grey, indicating that it is recognized and present on the network. FD-11637 User Guide | © National Instruments | 9...
Page 11 Figure 4. MAX Icons and States 1. Discovered, but Not Added to the Network 2. Recognized, Present, and Reserved on the Network If your device does not appear in Available Devices, click Refresh List. If the device still does not appear, try the following: –...
Page 12 IN OUT Internal Circuit Chassis Ground The FieldDAQ device requires an external power source connected between the V and C terminals, as described in Power Requirements in the FD-11637 Specifications. The FieldDAQ FD-11637 User Guide | © National Instruments | 11...
Page 13 device internally connects the C terminal to the chassis ground. Recommended NI power supplies are listed in FD-11637 Basic Information. The FD-11637 has a maximum device power consumption of 15 W. Each FieldDAQ filters and regulates the supplied power for its tasks. When FieldDAQ devices are linked together through the power IN and power OUT connectors, the total current consumption of the chain equals the sum of every linked FieldDAQ device’s current consumption.
Page 14 Refer to Safety Voltages in the FD-11637 Specifications for information about the maximum voltage from terminal to chassis ground. Signal Connectors and Measurements The following figures show strain/bridge input circuitry and block diagram of the FD-11637. FD-11637 User Guide | © National Instruments | 13...
Page 15 Figure 8. FD-11637 Input Circuitry 10 V, 5 V, or 3 V Excitation EX– – Bridge Completion – AI– Amplifiers Filtering ÷ Ratio Measurement RS– – TEDS Hardware Interface Data T– 14 | ni.com | FD-11637 User Guide...
Page 16 Strain/Bridge Connectors The FD-11637 features eight 8-pin A-coded M12 connectors. The following figure shows the pinout of a strain/bridge input connector. The FD-11637 provides connections for eight quarter-, half- or full-bridge connections. FD-11637 User Guide | © National Instruments | 15...
Page 17 Figure 10. FD-11637 Pinout EX– RS– T– AI– Table 5. Signal Descriptions Pin Number Signal Description Positive sensor excitation TEDS data TEDS return Negative analog input signal Positive remote sense Positive analog input signal Negative remote sense Negative sensor excitation M12 connectors must be mated to cables or have caps installed on them to Note meet IP65/IP67 requirements.
Page 18 EX- signal (pin 8) to the earth ground or shield for better noise rejection. Remote sense connections are recommended; refer to Remote Sensing and Shunt Calibration for remote sense use cases. FD-11637 User Guide | © National Instruments | 17...
Page 19 Figure 11. Connecting a Full-Bridge Signal to the FieldDAQ Device 10 V, 5 V, or 3 V – Excitation AI– – Amplifiers ÷ Filtering Ratio Measurement – EX– RS– TEDS TEDS EEPROM Interface Recommended • Half-Bridge Signals—You can connect a ground referenced or floating half-bridge signal to the FieldDAQ device.
Page 20 DAQmx Perform Bridge Offset Nulling Calibration VI/function or the DAQ Assistant with the Software Compensation (Initial Bridge Voltage) method to perform an offset nulling calibration. Refer to the Offset Nulling (Bridge Balancing) topic of the NI-DAQmx Help for more information. FD-11637 User Guide | © National Instruments | 19...
Page 21 Connecting TEDS Sensors You can connect TEDS (Transducer Electronic Data Sheets) sensors to the FieldDAQ device through the T+ and T- pins on each connector. Ensure that the TEDS data (T+) or the TEDS return (T-) signals are not connected to any of the bridge signals on the FieldDAQ device. Figure 14.
Page 22 120 Ω mode, a 49.66 kΩ shunt is used; in 350 Ω mode, a 49.90 kΩ shunt is used. Figure 16. Connecting Shunt Calibration Wires to the FieldDAQ Device lead bridge EX– 120 Ω 49.66 kΩ lead 350 Ω 49.90 kΩ FD-11637 User Guide | © National Instruments | 21...
Page 23 To perform a shunt calibration with the FieldDAQ device, connect your external strain gage as shown in the figure and ensure that you have a stable signal, which is typically the unloaded state of the sensor. Acquire a measurement of the input first with the shunt calibration switch off and then again with the switch on.
Page 24 Refer to the FD-11637 Specifications for details on the amount of variation in the passband gain and signal delay you can expect for different frequency ranges. FD-11637 User Guide | © National Instruments | 23...
Page 25 Figure 17. Typical Passband Flatness 0.10 0.08 102.4 KS/s 50 KS/s 0.06 10 KS/s 0.04 0.02 0.00 –0.02 –0.04 –0.06 –0.08 –0.10 10 k 15 k 20 k 25 k 30 k 35 k 40 k 45 k 50 k Frequency (Hz) 1.
Page 26 The FieldDAQ device automatically issues a synchronization pulse to each bank that resets their ADCs at the same time. You can also specify a specific time for the synchronization pulse to occur. Because of the filtering used in the Delta-Sigma FieldDAQ device A/D FD-11637 User Guide | © National Instruments | 25...
Page 27 converters, these devices exhibit a fixed input delay relative to non-Delta-Sigma devices in the system. This input delay is specified in the FD-11637 Specifications. When using multiple FieldDAQ devices in a task that contains channels for a Delta-Sigma device, such as the FD-11637, ensure that one of those channels is the first in your channel list. AI Sample Clock Timebase Signal The AI Sample Clock Timebase signal is divided down to provide a source for Sample Clock.
Page 28 NI-DAQmx Help for more information about configuring timing in the NI-DAQmx API. Synchronization across a Network The onboard 100 MHz oscillator automatically synchronizes to other network-synchronized devices that are part of your local 802.1AS subnet. FD-11637 User Guide | © National Instruments | 27...
Page 29 The 13.1072 MHz, 12.8 MHz, 12.288 MHz, and 10.24 MHz Timebases are derived from the oscillator, and are synchronized to it. Therefore, they are also synchronized to other network- synchronized timebases on your 802.1AS subnet. This enables measurement signals to be synchronized to other devices across a distributed network.
Page 30 Table 10. LED State/Device Status LED State Device Status Ethernet link Blinking, fast (12 blinks/s) Ethernet activity. Connected at 1,000 Mbit/s. Blinking, moderate (6 blinks/s) Ethernet activity. Connected at 100 Mbit/s. FD-11637 User Guide | © National Instruments | 29...
Page 31 Table 10. LED State/Device Status (Continued) LED State Device Status Blinking, slow (3 blinks/s) Ethernet activity. Connected at 10 Mbit/s. No Ethernet connection Internal Ethernet Switch The FieldDAQ device features a full hardware-accelerated internal Ethernet switch for greater performance, wiring flexibility, and compatibility over standard Ethernet ports. The Ethernet switch exposes two Ethernet ports to the user.
Page 32 Be aware that these devices will compete for network bandwidth with the FieldDAQ device. Reliable system design requires awareness of the bandwidth consumed by each device during operations. This topology offers no redundant links. FD-11637 User Guide | © National Instruments | 31...
Page 33 Figure 22. Line Topology Host Node Node Node Networking Advantages: • Simple and inexpensive installation, expansion, and troubleshooting • Ideal for low number of nodes. NI recommends a maximum of 15 nodes. • No external switch needed • Can cover long distances Disadvantages: •...
Page 34 Unpowered nodes and/or node failure does not disrupt network communication with other nodes • Failure of any single Ethernet cable does not disrupt network communication when you have a redundant link FD-11637 User Guide | © National Instruments | 33...
Page 35 • Additional nodes or heavier network traffic affects network performance less than the other topologies • Simple installation, expansion, and troubleshooting Network configuration and programming require careful consideration. Visit Note ni.com/info and enter for information about exploiting link redundancy and fdenet automatically improving reliability.
Page 36 LabVIEW Real-Time 2017 or later required to use the FieldDAQ synchronization features. You can either use a shielded straight-through Ethernet cable or an Ethernet crossover cable to connect the FieldDAQ device directly to your computer. FD-11637 User Guide | © National Instruments | 35...
Page 37 To add the FieldDAQ to the software configuration on the Real-Time target, open NI MAX on the host computer. In the MAX configuration tree, expand Remote Systems» your Real-Time Controller»Devices and Interfaces»Network Devices. Click Add Network Device, and then Find Network NI-DAQmx Devices. In the Find Network NI-DAQmx Devices dialog box that opens, do one of the following: •...
Page 38 When the FieldDAQ device is connected to a network, multiple users can access the device. To perform any DAQ functionality on the device, including reset and self-test, you must reserve the device in MAX. In MAX, an unreserved device or device reserved by another host FD-11637 User Guide | © National Instruments | 37...
Page 39 appears with an X and a reserved device appears as dark grey. Only one user at a time can reserve the FieldDAQ device. If the device was not reserved automatically after it was added (Add Device), you can reserve the device in MAX by expanding Devices and Interfaces»Network Devices, selecting the device, and clicking the Reserve Network Device button.
Page 40 75 °C or less. However, to ensure proper functionality during use above 75 °C, you must mount the FieldDAQ device in the reference mounting configuration shown in the following figure. Observe the following guidelines to mount the FieldDAQ device in the reference mounting configuration. FD-11637 User Guide | © National Instruments | 39...
Page 41 Figure 28. Reference Mounting Configuration 1. Vertical mounting orientation. 3. Observe the cooling dimensions in Mounting Requirements. 2. Mount the FieldDAQ device directly to a metallic surface that is at least 1.6 mm (0.062 in.) thick 4. Allow space for cabling clearance according to the and extends a minimum of 76.2 mm (3 in.) beyond Mounting Requirements.
Page 42 10 A TOTAL 76.2 mm (3.00 in.) STATUS All Around LINK/ACT 10/100/1000 Cooling SYNC Dimensions Allow the appropriate space in front of the device for cabling clearance, as shown in the following figure. FD-11637 User Guide | © National Instruments | 41...
Page 43 Figure 30. Cabling Clearance Cabling Clearance Measure the ambient temperature at each side of the FieldDAQ device, 76.2 mm (3.00 in.) from the side and 25.4 mm (1.00 in.) forward from the rear of the device. Refer to the following figures for ambient temperature locations for horizontal and vertical mounting configurations.
Page 44 M5 or 10-32 panhead or sockethead cap screws appropriate for the surface. Complete the following steps to mount the FieldDAQ device directly on a flat surface. Prepare the surface for mounting the device using the surface mounting dimensions. FD-11637 User Guide | © National Instruments | 43...
Page 45 Figure 33. Surface Mounting Dimensions 34.0 mm (1.33 in.) FieldDAQ 9-30 V 10 A TOTAL STATUS LINK/ACT 10/100/1000 SYNC 99.3 mm (3.90 in.) Align the device on the surface. Fasten the device to the surface using the M5 or 10-32 screws. Tighten the screws to a maximum torque of 2.5 N ·...
Page 46 The FD-11637 Quick Start, packaged with your device, describes how to install your NI-DAQmx for Windows software, how to set up your FieldDAQ device, and confirm that your device is operating properly. FD-11637 User Guide | © National Instruments | 45...
Page 47 FieldDAQ device. NI-DAQmx The NI-DAQmx Readme lists which devices, ADEs, and NI application software are supported by this version of NI-DAQmx. Select Start»All Programs»National Instruments»NI- DAQmx»NI-DAQmx Readme. The NI-DAQmx Help contains API overviews, general information about measurement concepts, key NI-DAQmx concepts, and common applications that are applicable to all programming environments.
Page 48 The NI-DAQmx Help contains API overviews and general information about measurement concepts. Select Start»All Programs»National Instruments»NI-DAQmx»NI-DAQmx Help. The NI-DAQmx C Reference Help describes the NI-DAQmx Library functions, which you can use with National Instruments data acquisition devices to develop instrumentation, acquisition, FD-11637 User Guide | © National Instruments | 47...
Page 49 For patents covering NI products/technology, refer to the appropriate location: Help»Patents in your patents.txt ni.com/patents software, the file on your media, or the National Instruments Patent Notice at . You can find information about end-user license agreements (EULAs) and third-party legal notices in the readme file for your NI product. Refer ni.com/legal/export-compliance...

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