RTMC200-485 Controller

RT2-485A.jpg

RTMC200-485A  $129.50

User Manual

RT2-485B.jpg

RTMC200-485B  $139.50

User Manual

RT2-485C.jpg

RTMC200-485C  $134.50

User Manual

RTMC200-485 is a RS-485 interface based function-ready slave controller that accepts either serial ASCII string commands or Modbus protocol to perform real-time tasks in the applications of monitoring, measuring, and controls. It is based on a high-performance 16-bit 40 MIPS DSP core processor with enhanced peripheral interface. The advanced embedded firmware has been developed and embedded into this controller so that the customer neither needs to develop real-time embedded firmware nor needs development tools. To command this device, the user simply sends ASCII strings or Modbus protocol  through RS-485 serial port to read A/D, to output D/A and PWM, to set I/O or read I/O, and to read event counters. You can choose to have the return data in either ASCII format or binary format based on setup configuration. You can configure the two D/A outputs as the normal digital to analog outputs or as function generators. When configured as function generators,  one D/A will output sine waveform with frequency and amplitude adjustable, and the other one can be a ramp function for trapezoidal profile generation. Each A/D input can be filtered or passed through as raw data. This controller is capable of automatically recognizing ASCII protocol and Modbus protocol. For more details, click here to download user manual for RTMC200 Series Controllers (PDF).

The ASCII string commands are intuitive and simple. For example, the command @5RAF5 will read the A/D channel 5 with digital filtering ( cut-off frequency is set by another command) from device address 5.  @2RAU3 will read the A/D channel 3 with raw data from device address 2.

We offer three different board assembly configurations to give you a flexibility to choose the one that fits your hardware interface. The RTMC200-485A has no 0.1" pin header connectors installed; the RTMC200-485B is fully populated with 0.1" headers and terminal blocks as shown in the above picture; the RTMC200-485C is specially to be used as a daughter board with all 0.1" pin header connectors for daughter board interface. All of the three different boards function the same as stated in RTMC200 series controller's User Manual

 

 Features:

  • 16-bit 40 MIPS DSP core controller.

  • 16 channels,10-bit A/D Sample & Hold with programmable sampling rate up to 30 kHz.

  • Up to 4 channels, 12-bit D/A with programmable sampling rate up to 30 kHz.

  • 3 16-bit PWM outputs with programmable carrier frequency up to 30 kHz (symmetric waveform).

  • 2 32-bit counters with up to 10 MHz input signal bandwidth.

  • 10 Inputs,  digital I/O TTL compatible.

  • 9 Outputs,  digital I/O TTL compatible.

  • Digital filter on each A/D input.

  • Built-in Watchdog capability.

  • Sine waveform and trapezoidal profile generation on 2 D/A output channels (if configured).

  • EEPROM for all configuration parameters.

  • RS-485 Communication and daisy-chainable up to 63 boards.

  • Support simple ASCII string commands.
  • Support Modbus protocol.
  • 6.5 -12 V DC daisy-chainable power supply .
  • Compact size: 3.75" x 2.5" (9.6 x 6.3 cm) .

 

Connectors:

  • 0.1"  20-pin double row header for J1 (Analog Inputs Interface)
  • 0.1"  5-pin single row header for J8 (Digital-to-Analog Interface)
  • 0.1"  40-pin double row header for J2 (I/O Interface)
  • 0.1"  3-in single row header for J4 (RS-485 Interface)
  • 2 RJ-45 jack connectors J5 and J6 for RS-485 interface
  • 0.1"  3-pin single row header for J14 (Power Supply)
  • 0.1"  2-pin single row header for K1 (Jump for daisy-chainable power supply)
  • 0.1"  2-pin single row header for K2 (Jump for default communication set)
  • 0.1"  2-pin single row header for K3 (Jump for 120 Ohm terminal resistor)