
23-8
RS-485 I/O Modules
Model ADAM-4018+ ADAM-4019+ ADAM-4021 ADAM-4024 ADAM-4050 ADAM-4051
Resolution
16 bit 12 bit 12 bit - -
Analog
Input
Channels
8 differential 8 differential - - - -
Sampling Rate
10 Hz - - - -
Voltage Input
-
± 100 mV
± 500 mV
± 1 V
± 2.5 V
± 5 V
± 10 V
- - - -
Current Input
4 ~ 20 mA
±20 mA
4 ~ 20 mA
±20 mA
- - - -
Direct Sensor Input
J, K, T, E, R, S, B
Thermocouple
J, K, T, E, R, S, B
Thermocouple
- - - -
Burn-out Detection
Yes
Yes
(4 ~ 20 mA & All
T/C)
- - - -
Channel
Independent
Configuration
Yes Yes - - - -
Analog
Output
Channels
- - 1 4 - -
Voltage Output
- - 0 ~ 10 V ±10 V - -
Current Output
- -
0 ~ 20 mA
4 ~ 20 mA
0 ~ 20 mA
4 ~ 20 mA
- -
Digital Input
and Output
Input Channels
- - - 4 7 16
Output Channels
- - - - 8 -
Alarm Settings
- - - Yes - -
Counter
(32-bit)
Channels
- - - -
Input Frequency
- - - - - -
Isolation
3,000 V
DC
3,000 V
DC
3,000 V
DC
3,000 V
DC
- 2,500 V
DC
Digital LED Indicator
- - - - - Yes
Watchdog Timer
Yes
(System &
Comm.)
Yes
(System &
Comm.)
Yes (System)
Yes (System &
Comm.)
Yes (System)
Yes (System &
Comm.)
Safety Setting
- - - Yes - -
Modbus Support *
Yes Yes - Yes - Yes
Page
23-20 23-20 23-21 23-21 23-22 23-22
*: All ADAM-4000 I/O Modules support ASCII Commands
I/O Module Selection Guide
Analog Input Analog Output Digital Input/Output
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