Auto485
Description
The Auto485 adapter is a general purpose, auto-turnaround RS232-toRS485 converter that can be used to convert any standard RS232C port into a two-wire RS485 port and vice versa.

When used with TRi’s programmable controllers, it greatly expands the PLC’s serial I/O capabilities by allowing multiple PLCs to be linked to a single PC for programming, file services or internet connectivity. It can also be used to convert the PLC’s RS485 into an additional RS232 port for
connections to third party RS232 devices such as HMI, frequency inverters, barcode scanners, smart card readers, external modems etc.

 

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  • Notes
  • Specification
  • Documentation
  • Application
  • Review
  • Compatible PLCs
▸ The adapter requires a 9 to 24V DC power which means it can be powered by the same 12 to 24V power supply of the PLC.

▸ This RS232-to-RS485 converter supports both /RTS-controlled turnaround and automatic turnaround of the transceiver buffer.  The following are some possible applications:

  1. For programming an M-series PLC via its RS485 port so that its RS232 port can be freed for connecting to other devices such as HMI, SCADA, barcode scanner, smart card readers, etc. (You can also use the new U-485 adapter which is a USB-RS485 adapter)

  2. For linking as many as 240 PLCs via RS485 multi-drop bus to a single PC for local programming or remote programming / monitoring via the Internet.

  3. To transparently convert the PLC's RS485 port into an additional RS232 port for interfacing to third party RS232 devices. This is made possible by the auto-turnaround features built into the adapter.


- Dimension (L x W x H) 73.0 x 32.5 x 15.0 mm
- Weight 0.23 lbs
- Power Supply Input 9V - 24V DC
Auto485 User's Guide (View PDF)
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