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HE693THM665

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SKU 2178137  UPC 063520665531

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Other Available Revisions for the HE693THM665 HE693THM665AHE693THM665BHE693THM665CHE693THM665DHE693THM665EHE693THM665FHE693THM665GHE693THM665HHE693THM665IHE693THM665JHE693THM665KHE693THM665LHE693THM665MHE693THM665NHE693THM665OHE693THM665PHE693THM665QHE693THM665RHE693THM665SHE693THM665THE693THM665UHE693THM665VHE693THM665WHE693THM665XHE693THM665YHE693THM665Z

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  • HE693THM665

The HE693THM665 allows thermocouple temperature sensors to be connected to the PLC directly without the use of external signal processing such as transducers, transmitters, etc. All analog and digital processing of the thermocouple signal is performed on the module. These backplane-isolated (or bus-isolated) modules report temperature values to the PLC I/O table in increments of 0.5°C, 0.5°F, 0.1°C, or 0.1°F respectively. The module features six thermocouple channels whose temperature values are reported to 6 %AI input registers. Each channel can be individually configured for a specific type of sensor wire. There are 6 %I alarm bits and one setpoint alarm for each channel. Alarm setpoints are configured for each channel using 6 %AQ registers. An available feature on the isolated thermocouples is the use of external AD592 cold junction compensation. This allows cold junction compensation to be accomplished in a remote isothermal terminal strip with a standard copper wire run from the remote terminal strip to the module.

Technical Specifications

Power Consumption 200mA @ 5VDC
Number of channels 6
Backplane Isolation ±1500 VAC to PLC backplane
Channel Isolation ±250V AC channel-to-channel
A/D Conversion Time 5ms
Common Channel Points NONE
Operating Temperature 0 to 60°C (32 to 140°F)
Operating Mode Self-Scan
I/O Points Required 6%AI, 6%AQ, 16%I
Input Impedance 1000M ohms @ < 100mV
Maximum Sustained Differential O/L ±35V
Common Mode Rejection >100dB
A/D Conversion Type 18-bit integrating
Scan Rate 40 channels per second
Open Thermocouple Response Programmable Upscale or Downscale
Relative Humidity 5% to 95% non-condensing
Resolution 0.5°C, 0.5°F, 0.1°C, 0.1°F

Technical Information

Power Consumption 200mA @ 5VDC
Number of channels 6
Backplane Isolation ±1500 VAC to PLC backplane
Channel Isolation ±250V AC channel-to-channel
A/D Conversion Time 5ms
Common Channel Points NONE
Operating Temperature 0 to 60°C (32 to 140°F)
Operating Mode Self-Scan
I/O Points Required 6%AI, 6%AQ, 16%I
Input Impedance 1000M ohms @ < 100mV
Maximum Sustained Differential O/L ±35V
Common Mode Rejection >100dB
A/D Conversion Type 18-bit integrating
Scan Rate 40 channels per second
Open Thermocouple Response Programmable Upscale or Downscale
Relative Humidity 5% to 95% non-condensing
Resolution 0.5°C, 0.5°F, 0.1°C, 0.1°F
  • Question: What is a HE693THM665? Answer: The HE693THM665 allows thermocouple temperature sensors to be directly connected to the PLC without external signal processing (transducers, transmitters, etc.). All analog and digital processing of the thermocouple signal is performed on the module.
  • Question: What is the main power supply for the HE693THM665? Answer: The main power source for the HE693THM665 uses 200mA @ 5VDC which is connected to the PLC.
  • Question: How can I minimize capacitive loading and noise? Answer: Shielded, twisted-pair extension wiring offers the best noise immunity. 
  • Question: Where should the shields be connected to? Answer: If shielded wiring is used, a good earth ground connection is critical. 
  • Question: Can I change the number of channels or the voltage on this device? Answer: Yes, you can. This is a 6 channel unit.

PDFsupply Tech

The HE693THM665 is an isolated thermocouple input module that allows thermocouple temperature sensors to be directly connected to the PC without external signal processing. The HE693THM665 is equivalent to the HE693THM668 and also has a 50Hz notch filter.

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Rockwell Disclaimer: The product is used surplus. PDF Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because PDF Supply is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, PDF Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. PDF Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. PDF Supply also makes no representations as to your right to install any such firmware on the product. PDF Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.