ADAM-4000 Series User Manual 22
3.1 The Common Specification of ADAM-4000 I/O
Series
Communication:
RS-485 (2-wire) to host
Speeds: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200 bps (ADAM-
4080, ADAM-4080D only support up to 38400 bps)
Max. communication distance: 4000 feet (1.2 km)
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 (N, 8, 1)
Up to 256 multidrop modules per serial port
Online module insertion and removal
Transient suppression on RS-485 communication lines
Power Requirement:
Unregulated +10 ~ +30 VDC
Protected against power reversal
Mechanical:
Case: ABS+PC with captive mounting hardware
Plug-in screw: Stripped length: 6.5 mm
Terminal block: #14 ~22 or #14~28 AWG
Environment
EMI: Meets FCC Class A or CE
Operating Temperature: -10 ~ 70° C (14 ~ 158° F)
Storage Temperature: -25 ~ 85° C (-13 ~ 185° F)
Humidity: 5 ~ 95%, non-condensing
3.2 ADAM-4011/4011D Thermocouple Input Modules
The ADAM-4011/4011D Thermocouple Input Modules use a microprocessor-con-
trolled integrating A/D converter to convert sensor voltage, current or thermocouple
signal into digital data. The digital data is then translated into either two’s comple-
ment hexadecimal format or percentage of full-scale range (FSR) according to the
module’s configuration. When prompted by the host computer, the data is sent
through a standard RS-485 interface.
The ADAM-4011/4011D Thermocouple Input Modules offer signal conditioning, A/D
conversion, ranging, and RS-485 digital communication functions. They protect your
equipment from power surges at the ground terminal by providing opto-isolation of
the A/D input and transformer based isolation up to 3000 V
DC
. (ADAM-4011 has
transformer-based isolation up to 500 V
DC
)