ADAM-4021
Analog Output Module
	Replaced by ADAM-4021-DE (RoHs Version)
Introduction Applications Specifications Ordering Information

Simple configuration, easy programming and supported by major DA & C packages - these are just a few reasons to use Advantech's ADAM 4000 modules.

Analog input modules use microprocessor-controlled high resolution 16-bit sigma-delta A/D converters to acquire sensor signals such as voltage, current, thermocouple or RTD. They then translate digital data into one of the following formats: engineering units, % of FSR, two's complement for Ohms. After the modules receive a request from the host, they send the data in the desired format over the RS-485 network.

ADAM analog input modules protect your equipment from ground loops by providing 500VDC isolation. All analog input modules feature digital inputs and outputs which may also be used for alarm and event counting.

You can use any high-level language with ASCII-based string functions (such as C, Pascal or BASIC) to communicate with ADAM modules or process their data. For example, the command and response for an analog input module would be: COMMAND: #5, RESPONSE: > 4.834. This command requests the data stored by the module with address 05 (Hex). The module responds with the value 4.834 V.

ADAM's built in checksum feature ensures data integrity by detecting communication errors. This feature adds two checksum characters to every command or response string that enable you to verify that the message received is exactly the same as the message sent.

Easy-to-use menu-driven utility software make configuration and calibration a snap. Its terminal emulation program lets you easily read from and write to ADAM modules. Writing application programs with this software (GENIE 2.0) is simple, you can learn the basics in just a few minutes.

•   Under Construction

Communication

• RS-485 (2-wire) to host
• Speeds: 1200, 2400, 4800, 9600, 19200 bps
• Max. communication distance: 4000feet (1.2Km)
• Power and communication LED indicator
• ASCII command/response protocol
• Communication error checking with checksum
• Asynchronous data format: 1 start bit, 8 data bits, 1 stop bit, no parity
• Up to 256 multidrop modules per serial port
• On-line module insertion and removal
• Transient suppression on RS-485 communication lines

Power Requirements

• Unregulated 10 30 VDC
• Protected against power reversal

Mechanical

• Case: ABC with captive mounting hardware
• Plug-in screw terminal block:
  Accepts 0.5 mm² to 2.5 mm²
  1-#12 or 2-#14 to #22 AWG

Environment

• Operating temperature: 14 to 158ºF (-1000 to 70ºC)
• EMI: Meets FCC Class A
• Storage temperature: -13 to 185ºf (-25 to 85ºC)
• Humidity: 5 to 95%, non-condensing

Analog Output

• Output type: mA, V
• Output range: 0 to 20 mA, 4 to 20 mA and 0 to 10 V

Characteristics

• Isolation voltage: 500 VDC
• Accuracy:
  ±0.1% of FSR for current output
  ±0.2% of FSR for voltage output
• Readback accuracy: ±1% of FSR
• Resolution: ±0.025% of FSR
• Zero drift:
  Voltage output: ±30 mV/°C
  Current output: ±0.2 mA/°C
• Span temperature coefficient: ±25 ppm/°C
• Programmable output slope:
  0.125 to 128 mA/sec
  0.0625 to 64.0 V/sec.
• Current load resistor: 0 to 500 OHM (source)

Power

• Power requirements: 10 to 30 V (non-regulated)
• Power consumption: 1.2 W

ADAM-4021

Analog Output Module: V or mA