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The F4-08RTD, 8-Channel RTD Input Module contains features to improve reliability, usability, and flexibility.
The F4-08RTD contains eight RTD input channels with 16-bit resolution.
Dual matched current sources and ratiometric measurements are provided through precision lead wire resistance compensation.
Data from the National Institute of Standards and Technology (NIST) is used for temperature calculation and linearization.
Detection of short circuits and input power disconnection are some of the diagnostic features.
The F4-08RTD, 8-Channel RTD Input Module is a 8-differential channel resistive temperature detector input module. The number of channels is 8 differential inputs. The resolution is ±0.1°C, ±0.1°F (±3276.7). The power budget requirement is 80 mA at 5VDC (supplied by base). The environmental air requirement is no corrosive gases permitted. The operating temperature is 0-60°C (32-140°F). The relative humidity 5–95% (non-condensing).
The PLC update rate is 8 channels per scan maximum with DL440 and DL450 CPUs. The PLC update rate is 1 channel per scan maximum with a DL430 CPU. The common mode range 0-5 VDC. Consider that if a DL430 CPU is used and the module is placed so the input points do not start on a V-memory boundary, the instructions cannot access the data.
The F4-08RTD can be installed in any slot in a DL405 system. Considerations are the available power budget and the discrete I/O points.
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