CDM-A116
CDM-A116
Retired16-Channel 5 V Analog Input Module
No longer available to order
This product is retained for service, documentation, and compatibility information.
Replaced by
- Granite Volt 116
16- or 32-Channel 5V Analog Input Module
- Model:
- CDM-A116
- Item Number:
- 29382
- Warranty:
- 1 year
Overview
The CDM-A116 is an analog input module that allows you to easily expand your Campbell Scientific data logging system. The CDM-A116 features a 24-bit, analog-to-digital converter and a low-noise, analog front-end to provide you with superior analog measurements. This module also supports period average measurements and includes both current and voltage excitation channels.
The CDM-A116 has 16 differential inputs and four excitation channels. It provides two 12 V ports and two switched 12 V ports for powering your peripherals, as well as four switched 5 V ports for peripheral control.
Key Advantages
Greatly increases sensor capacity
Technical Description
The CDM-A116 offers 24-bit sigma-delta Adc with 16 user programmable notch frequencies from 30,000 Hz to 2.5 Hz, including 50 and 60 Hz. Previous generations of data loggers could notch out 50 or 60 Hz.
Benefits
- Ability to make simultaneous measurements
- CANbus 2.0A/2.0B capable; contact Campbell Scientific for details
Specifications
- -NOTE-
- Additional specifications are listed in the CDM-A108 and CDM-A116 brochure.
- Mounting
- Standard 1-in. grid
(DIN rail mounting available)
- Operating Temperature
- -40° to +70°C
(standard)
-55° to +85°C(extended)
- Power Requirements
- 9.6 to 32 Vdc voltage
- Estimated Accuracy
- ±(0.04% of reading + offset)
0° to 40°C
±(0.06% of reading + offset)-40° to +70°C
±(0.08% of reading + offset)-55° to +85°C
- Number of Channels
- 16 differential or 32 single-ended inputs
- Analog Inputs
- 32 single-ended or 16 differential
(with ±5000 mV, ±1000 mV, ±200 mV ranges 24 bit ADC)
- Maximum Multiplexed Sample Rate
- 3.0 kHz
(using fast [100 μs] input setting)
- Maximum Burst Sample Rate
- 30 kHz
- Input Range
- ±5000 mV, ±1000 mV, and ±200 mV
- Period Averaging
- Traditional period averaging on analog input channels
- CPI
- For data logger connection. Baud rate selectable from 50 kbps to 1 Mbps.
(Allowable cable length varies depending on baud rate, number of nodes, cable quality, and noise environment, but can be as long as 700 m under proper conditions.)
- USB
- USB 2.0 full speed connection available for attaching to a PC.
(Port is used to configure the module and download updates via our Device Configuration Utility.)
- Warranty
- One year against defects in materials and workmanship
- Dimensions
- 20.3 x 12.7 x 5.1 cm
(8 x 5 x 2 in.)
- Weight
- 0.9 kg
(1.95 lb)
Typical Current Drain
- Sleep
- <1 mA
- Active 1 Hz Scan
- 2 mA
(estimated)
Assumes one single-ended measurement with the first notch frequency (fN1) at 30 kHz - Active 20 Hz Scan
- 20 mA
Assumes one single-ended measurement with the first notch frequency (fN1) at 30 kHz
Voltage/Current Excitation Outputs
- Voltage Excitation
- ±5 V
(@ 50 mA)
- Current Excitation
- ±2.5 mA
(±5 V compliance voltage)
- Number of Voltage/Current Excitation Outputs
- 4
General Purpose Outputs
- Number of SW5V Outputs
- 4
- SW5V Output Resistance
- 30 Ω
- Number of SW12V Outputs
- 2
- Typical Limit of SW12V Outputs
- 200 mA
- Minimum Limit of SW12V Outputs
- 180 mA
- Number of 12V Outputs
- 2
- Typical Limit of 12V Outputs
- 200 mA
- Minimum Limit of 12V Outputs
- 180 mA
Accessories
(9)29370
CPI Network Kit
Orderable27555
USB 2.0 Cable, Type A Pin (Male) to Micro B Pin (Male), 6/6.5 ft
Orderable8125
Flat-Bladed Screwdriver, 2.5 mm Blade x 50 mm Shaft
Orderable28899
CAT6 Ethernet Unshielded Cable with RJ45 Connectors, 2 ft
Orderable28900
CAT5e Ethernet Unshielded Cable with RJ45 Connectors, 10 ft
Orderable28901
CAT5e Ethernet Unshielded Cable, RJ45 to RJ45, 50 ft
OrderableHUB-CPI
8-Channel RJ45 Hub for CPI Peripherals
Orderable29388
CDM DIN-Rail Mounting Kit
Orderable28558
Modular RJ45 Resistor Termination Plug for CPI Bus
Orderable
Common Accessories
(7)28899
CAT6 Ethernet Unshielded Cable with RJ45 Connectors, 2 ft
The 28899 is a 2 ft RJ45 cable used for connecting CDM devices together or to a datalogger.
Orderable28900
CAT5e Ethernet Unshielded Cable with RJ45 Connectors, 10 ft
The 28900 is a 10 ft RJ45 cable used for connecting CDM devices together or to a datalogger.
Orderable28901
CAT5e Ethernet Unshielded Cable, RJ45 to RJ45, 50 ft
The 28901 is a 50 ft RJ45 cable used for connecting CDM devices together or to a datalogger.
Orderable29388
CDM DIN-Rail Mounting Kit
The 29388 is only needed for DIN-rail applications. This DIN-rail kit can facilitate wiring when several CDMs are connected to one terminal.
Orderable29370
CPI Network Kit
One CPI network kit is required for each CDM network.
Orderable8125
Flat-Bladed Screwdriver, 2.5 mm Blade x 50 mm Shaft
If you're not ordering the datalogger on the same order, or if the screwdriver that came with the datalogger has been lost, you might need this small, flat-bladed screwdriver.
OrderableHUB-CPI
8-Channel RJ45 Hub for CPI Peripherals
The HUB-CPI allows eight CPI devices to be connected together in parallel. Typically, this configuration includes one datalogger and up to seven CDMs or sensors that use CPI.
Orderable
Replacement Parts
(12)26031
Spring Plug Terminal Connector
The 26031 is a power connector that may be purchased to replace a lost or damaged connector.
Orderable29474
Stainless-Steel Screw #10-32 x .500 Slotted Set Cut Point
The 29474 is a ground lug with a slotted notch on its top that may be purchased to replace a lost or damaged ground lug.
Orderable29267
CDM Mounting Bracket
The 29267 Mounting Bracket fastens a CDM module to an enclosure backplate. This mounting bracket may be purchased to replace a lost or damaged bracket.
Orderable19343
Screw #6-32 x .187 Flat Phillips, 100-Degree Countersink
Two of these screws are used to attach the 29267 Mounting Bracket to a CDM module.
Orderable29389
Parts Included Kit for the VWire 305
The 29389 consists of the 28898 6 in. RJ45 to RJ45 cable, the 9634 black and 9635 red power wires, two 505 screws, and two 6044 grommets.
Orderable30775
Terminal Connector Screw Plug for CDM-A108/16 Marked CH1-8
The 30775 may be ordered to replace a lost or damaged screw plug for the CH1-8 terminal. Two of the 30775 are required for all eight channels.
Orderable30776
Terminal Connector Screw Plug for CDM-A16 Marked CH9-16
The 30776 may be ordered to replace a lost or damaged screw plug for the CH9-16 terminal. Two of the 30776 are required for all eight channels.
Orderable505
Screw #6-32 x .375 Pan Phillips
These screws, along with the 6044 grommets, are commonly used together to secure our equipment to the backplates of our enclosures.
Orderable6044
Grommet for #6 or #8 Screw
These grommets are commonly used with the 505 screws to secure our equipment to the backplates of our enclosures.
Orderable28898
CAT6 Ethernet Unshielded Cable with RJ45 Connectors, 6 in.
The 28898 is a 6 in., unshielded, CAT6 network cable with RJ45 connectors. It is typically used to connect CDM devices together or to an SC-CPI.
Orderable27555
USB 2.0 Cable, Type A Pin (Male) to Micro B Pin (Male), 6/6.5 ft
The 27555 is a USB Type A to Micro B, pin (male)-to-pin (male) cable, 6 to 6.5 ft long. It connects devices using the Micro B interface to a USB port on a computer.
Orderable28490
Red Wire and Black Wire Power Cable Set
The 28490 includes two wires—one red and one black. These wires differ only in their insulation color; they have the same same length (1 ft) and gage (18 AWG). The red and black wires are used to connect a Campbell Scientific power supply to a datalogger.
Orderable
Compatibility
Compatible Products
(2)
Incompatible Products
(1)
Related Resources
Case Studies
Documents
Downloads
- OS and FirmwareCDM-A100 OSv06.03
May 9, 2023
Execution of this download installs the CDM-A108 / CDM-A116 Operating System on your computer which can then be uploaded to the CDM-A108 or CDM-A116 device with the Device Configuration Utility.
- Software ApplicationsCPI Calculatorv1.0
July 6, 2016
The CPI Calculator is a downloadable Microsoft Excel spreadsheet used to estimate the usage and capacity of a CPI network. The calculator provides an overview on CPI devices including the CDM-A108, CDM-A116, CDM-VW300, CDM-VW305, and the CSAT3B. The calculator can also estimate the measurement speed of the CDM-A108 and CDM-A116 based on the number of channels and measurement parameters. The CPI Calculator is an estimation tool and will help you better understand and design CPI networks by considering the following: What is the capability of each CDM or CPI device What is the CPI network capacity How much of the CPI capacity are the CDMs or CPI devices using
- Software ApplicationsDevice Configuration Utilityv2.36
June 22, 2026
A software utility used to download operating systems and set up Campbell Scientific hardware. Also will update PakBus Graph and the Network Planner if they have been installed previously by another Campbell Scientific software package. Supported Operating Systems: Windows 11 or 10 (Both 32 and 64 bit)