- Supports 4~20 mA
- Software configurable for mV, V, mA or Thermocouple inputs
- 16-bit resolution
- Isolation voltage 3000 VDC
- Supports Modbus/RTU Protocol
- Burn-out detection function
Advantech ADAM-4019+ 8-ch Universal Analog Input Module with Modbus


Advantech's ADAM-4019+ is an 8-channel universal analog input module. The new module improves over its predecessor ADAM-4019 with a 4~20 mA input range and a burnout detection function. Its mixed input range design supports individual configuration for each channel to save cost and space.
The module supports burnout detection and ADAM ASCII commands, plus Modbus/RTU protocol.
- Power Requirement: 10~30 VDC
- Analog Input
- Channels: 8 differential
- Voltage Range: ±100 mV ±500 mV ±1 V ±2.5 V ±5 V ±10 V
- Current Input: ±20 mA, 4~20mA
- Direct Sensor Input: J, K, T, E, R, S, B Thermocouple
- Burn-out Detection: Yes (4~20 mA & all T/C)
- Channel Independent Configuration: Yes
- Sampling Rates: 10 samples/second
- Resolution: 16-bit
- Input Impedance: Voltage: 20 MOhm Current: 120 Ohm
- Span Drift: ±25 ppm/°C
- Zero Drift: ±6 µV/°C
- CMR @ 50/60 Hz: 120 dB
- NMR @ 50/60 Hz: 100 dB
- Watchdog Timer: System (1.6 second) & Communication
- Connector: 2 x plug-in terminal block (#14~22 AWG)
- Temperature (Operating): -10~70 °C (14~158 °F)
- Humidity: 5~95 %RH
- Temperature (Storage): -25~85 °C (-13~185 °F)
- Interface: RS-485
- Isolation Protection: 3000 VDC
- Communication Protocol: ASCII command & Modbus/RTU
- Communication Speed: Serial: From 1,200 to 115.2 k
- Data Flow Control: Yes