SDM-SIO1A 1-Kanal serielles I/O-Modul
Serielle Eingänge für Datenlogger
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Überblick

Das SDM-SIO1A bietet einen zusätzlichen seriellen Eingang für einen Datenlogger von Campbell Scientific, konfigurierbar als RS232, RS422 oder RS485 (Halb- oder Vollduplex) Port zum Anschluss von intelligenten Sensoren, Displays uws. Der Logger muss SDM-fähig sein, dann können bis zu 15 Module an einem SDM-Port angeschlossen werden. Sie verhalten sich wie eingebaute serielle Ports und verwenden dieselben Programminstruktionen.
Das SDM-SIO1A ist am seriellen Eingang gegen Überspanung und Störsignale geschützt nach IEC61000-4-5 Level 4, so dass in den meisten Fällen kein zusätzlicher Überspannugnsschutz notwendig ist.

Für 4 zusätzliche serielle Kanäle ist das SDM-SIO4A erhältlich.

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Funktionen und Vorteile

  • Einfache und kompakte Methode um bis zu 15 zusätzliche serielle Ports an einem SDM-fähigen Logger zu erhalten
  • Voll kompatibel mit RS-232, RS-422 und RS-485 (Halb- und Voll-Duplex) Standards
  • Kann grosse Mengen an Daten von seriellen Sensor puffern
  • Unterstützt "talk-through" Modus am Datenlogger-Terminal und vereinfacht dadurch Testen und einstellen von seriellen Geräten
  • Eingebauter Schutz vor Überspannung und Störungen am seriellen Eingang macht für viele Anwendungen zusätzlichen Überspannungsschutz unnötig
  • Geringer Stromverbrauch im Ruhezustand, ideal für batteriebetriebene Stationen

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Technische Beschreibung

The SDM-SIO1A connects to a remote serial device using industry-standard hardware that can be set to true RS-232, RS-485, or RS-422 signal levels. When operating in RS-232 mode, the module also supports hardware handshaking. RS-422 mode is functionally the same as RS-485 mode, except the connection is limited to a point-to-point system. Connections and programming for RS-422 are otherwise identical to RS-485.

The SDM-SIO1A will accept serial data up to 6143 bytes and store it in its buffer. This allows remote equipment to transmit large amounts of data without needing to stop other processes in the datalogger.

Up to 15 SDM-SIO1A modules can be connected to a single datalogger using the SDM port, allowing a user to connect 15 different serial devices to a datalogger with ease. This is in addition to any connections made to the dataloggers via other serial ports.

Spezifikationen

Function Expands the number of serial devices that can communicate with a data logger.
Number of Channels 1
Supported Data Rates 300, 1200, 2400, 4800, 9600, 19200, 38400, 57600, and 115200 bits/s
Supported Modes of Operation
  • Hardware CTS/RTS flow control is supported in RS-232 mode. The handshaking lines can also be used as general purpose I/O lines.
  • RS-232 (full duplex and receive only)
  • RS-485 (half and full duplex)
  • RS-422 (half and full duplex)
Supported Data Format
  • In 7-bit mode with no parity, the user must ensure that the characters received by the SDM-SIO1A have a delay of at least one bit period or greater between them. This does not affect any other configuration and does not affect transmissions out of the SDM-SIO1A.
  • 8, 7 bit data size; none, odd, or even parity; one or two stops bits
Auto Baud Rate Detection Not supported
PakBus Communications Use of the serial port for general PakBus communications is not currently supported.
Voltage
  • Power supply +12 V connection
  • 7 V (minimum)
  • 12 V (nominal)
  • 30 V (maximum)
Operating Temperature -40°C to +70°C (standard)
Standard Humidity Range 0 to 95% (non-condensing)
EMC Compliance The SDM-SIO1A has been tested and shown to comply with IEC 61326. The device incorporates transient and surge protection that is designed to meet IEC61000-4-5, level 4, providing the device is adequately grounded.
Mounting Clips Optional DIN rail mounting clips are available, which can be fitted to the base of the case.
Mounting Holes Two spaced 7.6 cm (3 in.) apart
Dimensions 6.4 x 6.25 x 2.2 cm (2.51 x 2.46 x 0.86 in.) excluding mounting tabs

Buffer Sizes

-NOTE- Both transmit and receive buffers are fill and discard type. That is, after the buffers become full, no new information is accepted and all further data is discarded until space is made when the data logger requests data from the SDM-SIO1A.
Transmit Buffer Size 767 bytes (buffer from the data logger to the sensor)
Receive Buffer Size 6143 bytes (buffer from the sensor to the data logger)

Current Consumption

Standby Current
  • 110 µA (nominal)
  • 150µA (max)
Active Current 9.6 to 11.7 mA (depending on transmit mode and connections made)

Kompatibel mit

Please note: The following shows notable compatibility information. It is not a comprehensive list of all compatible products.

Datenlogger

Product Compatible Note
CR1000 (retired)
CR1000X
CR200X (retired)
CR216X (retired)
CR300 (retired)
CR3000 On the CR3000, SDMs are connected to the ports labeled SDM-C1, SDM-C2, and SDM-C3.
CR310
CR350
CR5000 (retired) The CR5000 is compatible with the SDM-SIO1A, but the operating system must be OS 6 or higher. On the CR5000, SDMs are connected to the ports labeled SDM-C1, SDM-C2, and SDM-C3.
CR6
CR800 (retired)
CR850 (retired)
CR9000X (retired) The CR9000X's operating system must be OS 6 or higher.

Halterungen und Masten

Product Compatible Note
ENC10/12
ENC12/14
ENC14/16
ENC16/18

Additional Compatibility Information

Datalogger Considerations

The SDM-SIO1A does NOT support auto baud rate detection nor the use of the serial port for general PakBus communications.

Compatible Contemporary Dataloggers

CR200(X) Series CR800/CR850 CR1000 CR3000 CR7X CR9000X CR6
*

Note:
*On the CR3000, SDMs are connected to the ports labeled SDM-C1, SDM-C2, and SDM-C3.

†The CR9000X's operating system must be OS 6 or higher.

Compatible Retired Dataloggers

The CR5000 is compatible with the SDM-SIO1A, but the operating system must be OS 6 or higher. On the CR5000, SDMs are connected to the ports labeled SDM-C1, SDM-C2, and SDM-C3.

Compatible Edlog Dataloggers

None of our Edlog dataloggers are compatible with the SDM-SIO1A.

Enclosure Considerations

The SDM-SIO1A requires a desiccated, non-condensing environment; a Campbell Scientific enclosure is recommended. The SDM-SIO1A has built-in keyhole flanges for mounting to the backplates of Campbell Scientific enclosures.

Compatible Enclosures

ENC10/12 ENC10/12R ENC12/14 ENC14/16 ENC16/18

Downloads

SDM-SIO1A / SDM-SIO4A OS v.3.0 (401 KB) 10-01-2024

Current firmware for the SDM-SIO1A and SDM-SIO4A.

Liste der Änderungen

Artikel und Pressemitteilungen