Chapter 7 IO Module
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LK430 6-channel Thermal Resistance Type Analog Input Module
Nickel618: 100 Ω/120 Ω/200 Ω/500 Ω
Platinum385: 100 Ω/200 Ω/500 Ω/1000 Ω
Platinum3916: 100 Ω/200 Ω/500 Ω/1000
Ω
Resistance Measurement
Range
Resistance Measurement
Accuracy
Sampling Period
(Full-channel Scanning
Time)
The measured data is a
resistance value
The measured data is a
temperature value
Differential Mode Rejection
Ratio
Common Mode Rejection
Ratio
0.05% of resistance, full range
Isolation Voltage between
Field and System
500 VAC@1 min, leaking current: 5 mA
Upload Data Format (0~65,535)
Uploaded Resistance for
Configuration Selection
65,535×(resistance value-Min. measurable resistance value in the range )/full
range resistance value
Uploaded Temperature for
Configuration Selection
Acquisition temperature ×10+10000
Failure Diagnosis and Hot Plug
Diagnosis
line broken detection
Over-limit alarm
When an line broken occurs, the diagnosis byte reports 0xA6, with the value
reported by the measured channel data optional for configuration
When the signal range exceeds Upper Limit Value/Lower Limit Value, the
diagnosis byte then reports 0xA7/0xA8
Enclosure Protection Rating