Este producto ya no está disponible y ha sido reemplazado por: SDM-IO16A. Algunos accesorios, recambios o servicios pueden todavía estar disponibles.
| Services Available | |
|---|---|
| Repair | No |
| Calibration | No |
| Free Support | Yes |
Resumen
El SDM-IO16 expande las prestaciones de los canales I/O de los dataloggers Campbell Scientific.
Leer másVentajas y características
- Provides 16 digital I/O ports
- Configurado como entrada, cada puerto puede monitorizar el estado lógico, contar pulsos, medir frecuencia y determinar el duty cycle
- Disponible extensión garantía de 3 años
Imágenes
Ficheros CAD:
Descripción detallada
El SDM-IO16 expande la capacidad de entradas y salidas digitales de los dataloggers Campbell Scientific. Cuando un puerto es configurado de entrada, cada puerto puede monitorizar el estado lógico, contar pulsos, medir señales en frecuencia y determinar ciclos de trabajo. En el modo de contaje de pulsos existe una opción para activar un filtraje de rebote de contacto, permitiendo al SDM-IO16 contar cierres de contacto con precisión. El SDM-IO16 también puede ser programado para enviar una señal de interrupción al datalogger cuando una o más señales de entrada cambian de estado.
Cuando se configura de salida, el datalogger puede prefijar cada puerto a 0 o 5V. Dispone de un circuito de amplificación que permite que una salida configurada en HI pueda aportar una corriente de hasta 100mA para controlar dispositivos externos como válvulas de bajo voltaje o relés.
Se pueden conectar hasta 15 módulos SDM-IO16 en el datalogger, lo que permite disponer de hasta 240 puertos de control I/O.
Data Logger Connection
The SDM Jumper Wire Kit (pn 32505) connects up to four SDMs to the data logger. This kit is recommended when multiple SDMs are connected to one data logger or for extremely short distances between the SDM and data logger. The CABLE5CBL-L cable is recommended for connecting a single SDM to the data logger, and for longer distances between the SDM and data logger.
Preguntas frecuentes
Número de FAQs relacionadas con SDM-IO16: 1
-
Both of these are SDM devices. Each SDM device that is connected to a datalogger needs a different SDM address (that is, 0 through 15). All SDM devices connect to the CR1000’s 12V, G, C1, C2, or C3 terminals. Up to 15 SDM devices can be connected to one datalogger.
For more information, see the Synchronous Devices for Measurement (SDMs) page.
Especificaciones
| Function | Expands the digital input and/or output capability of a data logger. |
| Number of Channels | 16 |
| Operating Temperature | -25° to +50°C |
| SDM & I/O Port | 0/5 V logic level ports (for connecting to the datal ogger’s control/SDM ports) |
| EMC Status | Complies with EN 61326:1997. |
| Operating Voltage | 12 Vdc (nominal 9 to 18 V) |
| Minimum Frequency | 0 Hz is reported if there are less than two high-to-low signal transitions in the measurement interval. |
| Minimum Pulse Width | 244 μs |
| Default Switch Debounce Timing | Input and ground must remain closed for 3.17 ms then remain open for 3.17 ms to be counted as a closure. |
| Internal Clock Accuracy | ±0.01%, worst case (-25° to +50°C) |
| Maximum Pulse Measurement Interval | 15.9375 s |
| Dimensions | 23.0 x 10.0 x 2.4 cm (9 x 4 x 1 in.) |
| Weight | 350 g (12 oz) |
Maximum Frequency (with 50/50 duty cycle) |
|
| Switch Debounce-Mode Turned Off | 2.0 kHz on all channels simultaneously |
| Default Switch Debounce-Mode Enabled | 150 Hz on all channels |
Current Drain |
|
| -NOTE- | Current consumption is roughly proportional to input signal frequency and number of ports used. Current drawn from any output must be added to the quiescent level to obtain the total current drain. |
| Typical Standby | 600 µA (all ports high, no load, excludes pulse counting) |
| Maximum | 3 µA (active with all 16 ports counting pulses at 2 kHz and no output load) |
Output |
|
| ON/HI Voltage (no load) |
|
| OFF/LO Voltage (no load) |
|
| Sink Current | Output will sink 8.6 mA from a 5 V source. |
| Source Current |
|
Input |
|
| Voltage |
|
| Protection | Input clamped at -0.6 V and ±5.6 V relative to ground (via a 33 Ω resistor to withstand a continuous current flow of 200 mA) |
| Source Current |
|
| Impedance | Biased to +5 V relative to ground (by a 100 kohm resistor) |
Compatibilidad
Nota: lo siguiente muestra información de compatibilidad notable. No es una lista de todos los productos compatibles.
Dataloggers
| Producto | Compatible | Nota |
|---|---|---|
| CR1000 (retired) | ||
| CR1000X | ||
| CR200X (retired) | ||
| CR216X (retired) | ||
| CR300 (retired) | ||
| CR3000 (retired) | For the CR3000, SDMs are connected to the ports labeled SDM-C1, SDM-C2, and SDM-C3. | |
| CR310 | ||
| CR5000 (retired) | For the CR5000, SDMs are connected to the ports labeled SDM-C1, SDM-C2, and SDM-C3. | |
| CR6 | ||
| CR800 (retired) | ||
| CR850 (retired) | ||
| CR9000X (retired) |
Miscelaneo
| Producto | Compatible | Nota |
|---|---|---|
| 21X (retired) | Output only | |
| CR10 (retired) | Output only | |
| CR10X (retired) | OS 1.17 or later | |
| CR23X (retired) | OS 1.14 or later | |
| CR500 (retired) | ||
| CR510 (retired) | ||
| CR9000 (retired) | ||
| GRANITE 10 | ||
| GRANITE 6 | ||
| GRANITE 9 |
Información de compatibilidad adicional
Software Requirements
Support for all the functions requires CRBasic’s SDMIO16 instruction or Edlog’s Instruction 188. Instruction 188 is available in Edlog templates that post date March 2002. (LoggerNet version 2.1 contains this template.) Edlog templates that predate March 2002 can support only the output mode using Instruction 104. The SDMCD16AC instruction supports only the output mode in CRBasic.
Power Considerations
In input mode, the power consumption varies from 3 to 600 microamps depending on the mode and input frequencies. The data logger's rechargeable power supply can often power the SDM-IO16 in these pulse counting or status input applications.
However, when the SDM-IO16 is used in an output mode and is driving significant loads, an external power supply is recommended.
Enclosure Considerations
The SDM-IO16 requires a desiccated, non-condensing environment; a Campbell Scientific enclosure is recommended. An integral mounting bracket, grommets, and screws attach the SDM-IO16 to the backplate of a Campbell Scientific enclosure.
Sensor Cabling
This cabling is typically sold as a part of the sensors. If cabling is not provided, you can use our 9922 two-conductor cable (see Ordering Info). When the distance between the data logger and the SDM-IO16 are significant, verify that the sensor cable has adequate resistance/capacitance specifications. Also, avoid sensors with completion resistors in their pigtails; it's preferable to have the completion resistors at the data logger.
Documentos
Casos de aplicación
When Dennis Quaintance decided to build the Proximity Hotel in Greensboro, North Carolina, he knew......leer más