The AD AEB 40 GT enables a 4-channel analog signal acquisition while providing digitally processed process variables. The signals are provided via an RS485 bus interface available. Analog values and scaling values are available via implemented MODBUS commands. All settings for scaling or filter are carried out via MODBUS commands.
The operating voltage is indicated by a green LED. The data communication is signaled by a yellow LED. Invalid measurement signals outside the defined measuring range are detected. In this case, the green LED flashes.



Conversion of analog process variables in digital information already in the cabinet. Drastic reduction of wiring work.

Specific characteristics

  • Four analog inputs can be used as voltage or current input.
  • Adjustable filter functions.
  • Electrically isolated RS485 bus interface.
  • Configurable interface settings.
  • Front-setting the device address.
  • Electrically isolated wide range power supply.
  • Programmable with PC via AD-Studio configuration software.
  • Double RS485 BUS connection for wire loop through.
  • Status LED for operating voltage and data communication.
  • Visual indication of an invalid measurement signals.

Business data

Order number
Customs tariff number / country of origin 8543 70 90 / Deutschland


Data sheet pdf en-aeb40gt.pdf (230 kB)
Tender text zip (18 kB)
STEP file step gt4b.step (4 MB)
Safety instructions pdf ad-safety-instructions.pdf (43 kB)

Technical specifications

Current inputs
Measuring range 0 ... 20 mA
Input resistance 50 Ohm
Voltage inputs
Measuring range 0 ... 10 V
Input resistance 100 kOhm
Signal detection
Channel counts (U/I) 4
Basic accuracy < 0,2 %
Temperature influence 80 ppm/K
Sampling rate / resolution 100 ms / 11 bit
Software protocol Modbus-RTU
Data format 19200, e, 8, 1
Max. bus users 99
Bus termination 120 ohms both sides at the end
Max. length of bus 500 m (no stubs)
Cable Twisted and shielded
Voltage range AC 50 ... 253 V AC, 50/60 Hz
Nominal voltage AC 230 V AC
Power consumption Max. 1,5 VA
Voltage range DC 20 ... 253 V DC
Nominal voltage DC 24 V DC
Power consumption Max. 0,5 W
Dimensions (WxHxD) 71 x 90 x 58 mm
Type of protection IP 20
Connection method Screw clamp
Terminals, wire cross section 2,5 mm² flex wire / 4 mm² one wire
Bolting torque terminals 0,6 Nm
Skinning length 6 mm
Weight ~ 140 g
Manner of fastening 35 mm DIN rail 35mm
Environmental conditions
Ambient temperature -10 ... 50 °C
Storage and transport -10 ... 70 °C (no condensation)
Product family standard EN 61326-1 1)
Emitted interference EN 55011, CISPR11 Cl. B, Gr. 1
Electrical safety requirements
Product family standard EN 61010-1
Overvoltage category II
Pollution degree 2
Galvanic isolation, test voltages
Grid side to RS485-Bus 3 kV, 50 Hz (1 min.)
Signal / supply unit 3 kV, 50 Hz (1 min.)
Signal / RS485 bus 1 kV, 50 Hz (1 min.)
Protection circuits
Input Electrical surge protection
RS485-Bus Electrical surge protection
Power supply Electrical surge protection
1) During checking, slight signal deviations are possible.

Block and wiring diagram




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