Chapter 3
Chapter 3 I/O Modules
3-7
Specification
Analog Input
z Effective Resolution: 16-bit
z Channel:8 differential
z ASCII command and Modbus protocol
z Input type & range:
Thermocouple
J 0 ~ 760
o
C
K 0 ~ 1370
o
C
T -100 ~ 400
o
C
E 0 ~ 1000
o
C
R 500 ~ 1750
o
C
S 500 ~ 1750
o
C
B 500 ~ 1800
o
C
Voltage mode
±15mV, ±50mV, ±100mV, ±500mV, ±1V, ±2.5V
Current mode
±20 mA, +4~20 mA
z Isolation Voltage 3000 V
DC
z Fault and Over voltage: Protection up to ±60V
z Sampling Rate: 100 samples/sec (Max).
z Input Impedance 20 M
z Accuracy of voltage mode : ±0.1% or better
z Accuracy of Current mode and high speed mode: ±0.2% or better
z Zero Drift: ±6µV/° C
z Span Drift: ±25 ppm/° C
z CMR @ 50/60 Hz 92 dB min.
z Built-in Dual Watchdog Timer
z Built-in TVS/ESD Protection
z Power Consumption 0.5W @ 24 VDC
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