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8-channel analog RS-485 True RMS Input Module. Differential wiring. 0.9 W power consumption.  Has operating temperature range of-25°C ~ +75°C (-13°F ~ +167°F)


8-channel analog RS-485 True RMS Input Module. Differential wiring. 0.9 W power consumption. Has operating temperature range of-25°C ~ +75°C (-13°F ~ +167°F)

  Price:  $459.00  

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The M-7017RMS a high-accuracy, RMS-to-DC converter which can compute AC input signals into the true RMS DC value of any complex waveform. It has 8-channels differential inputs which can be configured individually. RMS input range scales from +150 Vrms to +10 Vrms for this device and it features 4 kV ESD protection and 2500 VDC intra-module isolation and +/-35 VDC overvoltage protection.

  • 8-channel True RMS Input
  • ±0.15% Factory Calibrated Accuracy
  • The RMS input range can be from +150 mVrms to +Vrms
  • Designed for Standard Operation with Frequencies of 45 Hz to 10 KHz
  • Individual Channel Configurable
  • 4 kV ESD Protection
  • ±35 VDC Overvoltage Protection
  • 2500 VDC Intra-module Isolation/li>
  • RoHS Compliant
  • Wide Operating Temperature Range: -25°C to +75°C (-13°F ~ +167°F)


Interface RS-485
Bias Resistor No (Usually supplied by the RS-485 Master. Alternatively, add a tM-SG4 or SG-785.)
Baud Rate 1200 to 115200 bps
Protocol Modbus RTU, DCON
Dual Watchdog Yes, Module (1.6 Seconds), Communication (Programmable)
LED Indicators/Display
System LED Indicator Yes, 1 as Power/Communication Indicator
I/O LED Indicators -
7-Segment LED Display -
Intra-module Isolation, Field-to-Logic 2500 VDC
EMS Protection
ESD (IEC 61000-4-2) ±4 kV Contact for each Terminal
±8 kV Air for Random Point
EFT (IEC 61000-4-4) ±4 kV for Power Line
Surge (IEC 61000-4-5) ±0.5 kV for Power Line
Reverse Polarity Protection Yes
Input +10 ~ +30 VDC
Consumption 0.9 W
Dimensions (L x W x H) 123 mm x 72 mm x 35 mm
Installation DIN-Rail
Operating Temparture -25°C ~ +75°C (-13°F ~ +167°F)
Storage Temperature -40°C +85°C (-40°F ~ +185°F)
Humidity 10 to 95% RH, Non-condensing

I/O Specifications

Analog Input
Channels 8
Wiring Differential
Input Range 0 ~ +10 Vrms, 0 ~ +5 Vrms, 0 ~ +1 Vrms,
0 ~ +500 mVrms, 0 ~ +150 mVrms
Resolution 16-bit
Accuracy Sinusoid
50/60 Hz ±0.15% of FSR
45 Hz to 10 kHz ±0.5% of FSR
Crest Factor = 1 to 2 ±0.2% of FSR
Crest Factor = 2 to 3 ±0.35% of FSR

0 ~ +10 Vrms/0~ +5 Vrms/
0 ~ +1Vrms

±0.3% of FSR
Other ±0.7% of FSR
Sampling Rate 10 Hz (Total)
-3dB Bandwidth 15.7 Hz
Zero Drift ±20 μV/°C
Span Drift ±25 ppm/°C
Common Mode Rejection 86 dB
Normal Mode Rejection 100 dB
Input Impedence >2 MΩ
Individual Channel Configuration Yes
Overvoltage Protection ±35 VDC

References and Support

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