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Datasheet
User manual
 
Serial > Digital I/O & Counter/Timer
SRL-24A

Serial 24 Line Digital I/O Unit

  • Connects via RS232 or RS485
  • 24 DIO lines
  • TTL level I/O
  • I/O Connector: 1x DB25 Male
  • LED indication for power connection
  • Ideal for portable/laptop applications
  • Housing: Plastic ABS with rubber feet
  • Operating Temp: 0 to 70�C
  • Power: 100mA max
  • O/S Support for Windows 98/ME/XP/2000 & WinCE (PocketPC2002 & PocketPC2003)
  • Includes EDRE SDK, EDRE-Labview, EDRE-Testpoint and WaveView for Windows
  • Dimensions: 45(H) x 80(W) x 148(L) mm
  • Supplied with EDR Enhanced Software & Universal Switch Mode 9V PSU

The MicroDAQ SRL-24A is a general purpose digital I/O product which communicates to the host PC via a RS-232 or RS-485 (dependent on model) serial connection. Based on the industry standard 82C55 PPI device. It features 24 TTL level digital I/O lines. The I/O can be programmed in banks of 8 as inputs or outputs.

Two interface versions are available for the serial MicroDAQ range, these include RS-232 models and RS-485 models. The RS-232 models are best suited for short distances (up to 30 metres) or for use with hand held PC�s such as PDA�s.

The RS-485 models allow for long distance data transmission (up to 1200 metres). These RS-485 models are ideally suited for process control applications in a plant or industrial environment, which require long cable runs.

An easy-to-use configuration panel allows for easy setup of the devices. Drivers are provided for the most popular operating systems, as well as for the WindowsCE� family of products including PocketPC2002 and PocketPC2003. This support allows the serial MicroDAQ range to be controlled directly from a palm held PC with a serial port. Each unit is supplied with a WindowsCE API and control panel which is downloaded from a PC to the handheld device. Embedded Visual C++ and embedded Visual Basic examples are supplied.

These digital I/O products are ideal for use in the connection between a computer and the outside world. Allowing computer programs not only to sense real world events, but control them as well. Applications include man-machine interfacing, driving high power loads, sensing switch contact closures and much more.

Included Installation Kit (R-SRL-RS232-AC)

  • 4 x Rubber Vibration Mountings
  • 2 x Mounting Clip for uDAQ & Industrial DAQ
  • 1 x AC Power Cable (2.5 m)
  • 1 x 5 m Serial Cable (F-F)


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Included Installation Kit (R-SRL-RS485-AC)
  • 4 x Rubber Vibration Mountings
  • 2 x Mounting Clip for uDAQ & Industrial DAQ
  • 1 x DC Power Cable (2.5 m)
  • 1 x uDAQ ADPT 9


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We can also supply this unit with an in-vehicle DC power supply. This item can be found in the optional accessories.

Ordering Information

Item    Description    Price    Qty
SRL-24A-RS232    RS232 24 Channel DIO Unit - incl 2Mtr RS232 Cable & 9VDC Power Supply    £ 253.00
€ 325.74
$ 366.00
  
SRL-24A-RS485    RS485 24 Channel DIO Unit - incl ADPT-9 & 9VDC Power Supply    £ 255.00
€ 328.41
$ 369.00
  
Optional Accessories

Item    Description    Price    Qty
ADPT-25-L    Long MicroDAQ mini Screw Terminal Adapter    £ 40.00
€ 51.62
$ 58.00
  
ADPT-25-M    Medium MicroDAQ mini Screw Terminal Adapter    £ 40.00
€ 51.62
$ 58.00
  
ADPT-25-S    Short MicroDAQ mini Screw Terminal Adaptor    £ 40.00
€ 51.62
$ 58.00
  
ADPT-2526    DB25 (F) & IDC26 (M) to 27way Screw Terminal    £ 64.00
€ 82.77
$ 93.00
  
DB25M/F    DB25(M) to DB25(F) Multi-core Screened Cable    £ 15.00
€ 19.58
$ 22.00
  
PC-37F    24 Channel Opto-22 Solid State Relay Module    £ 447.00
€ 576.72
$ 648.00
  
PC-38X    24 Channel I/O DRIVER MODULE    £ 55.00
€ 70.31
$ 79.00
  
PC-43C    24 Channel Digital Opto-Isolator I/P Module    £ 150.00
€ 193.13
$ 217.00
  
PSD25-2    In-Vehicle MicroDAQ Power Supply    £ 29.00
€ 37.38
$ 42.00
  

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