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PET-7217RMS PoE Ethernet I/O Module, 8-ch True RMS AI, 4-ch DO

Product information "PET-7217RMS PoE Ethernet I/O Module, 8-ch True RMS AI, 4-ch DO"

PET-7217RMS is a PoE Ethernet I/O module for measuring AC signals as true RMS values. Its eight differential inputs can each be configured individually for ranges from +150 mVrms to +10 Vrms, and the module computes the true RMS DC value of complex, non-sinusoidal waveforms. Four isolated open-collector outputs complete the built-in I/O, so the unit can both monitor and act on a process from a single device.

The module suits engineers who need accurate AC measurement at remote points without a separate power or wiring infrastructure. A two-port 10/100 Base-TX switch with LAN bypass allows devices to be daisy-chained along a network line, and the module can be powered over Ethernet (IEEE 802.3af, Class 1) or from a +12 ~ +48 VDC terminal block. Communication uses Modbus TCP or Modbus UDP, with a built-in web server and web HMI for configuration and monitoring.

Protection features include 2500 VDC intra-module isolation, ±35 Vrms/±28 VDC overvoltage protection on the analogue inputs and a dual watchdog. Digital output power-on and safe values are programmable, and access control is provided through ID, password and IP filter settings.

Applications

  • Building Automation
  • Factory Automation
  • Machine Automation
  • Remote Maintenance
  • Remote Diagnosis
  • Testing Equipment
Product type: Ethernet I/O Module
Interface: Ethernet
Protocol: Modbus TCP, Modbus UDP
Digital outputs: 4
Analog inputs: 8
Ports: 2
PoE: Yes
Isolation: 2500 VDC
Power input: PoE, +12 ~ +48 VDC
Operating temperature: -25 ~ +75 °C
Mounting: DIN-rail

Specifications

Software
Built-in Web ServerYes
CPU Module
Watchdog TimerModule, Communication (Programmable)
Isolation
2-way IsolationI/O: 2500 VDC
EMS Protection
EFT (IEC 61000-4-4)±2 kV for Power Line
ESD (IEC 61000-4-2)±4 kV Contact for Each Terminal
±8 kV Air for Random Point
Surge (IEC 61000-4-5)±2 kV for Power Line
LED Indicators
StatusRun, Ethernet, I/O, PoE
Analog Input
Channels8 (Differential)
TypeTrue RMS
Resolution16-bit
AccuracySinusoid:
50/60 Hz: ±0.15% of FSR
45 Hz ~ 10 kHz: ±0.5% of FSR
Non-Sinusoid:
Crest Factor = 1 ~ 2: ±0.2% of FSR
Crest Factor = 2 ~ 3: ±0.35% of FSR
DC:
0 ~ 10 Vrms / 0 ~ 5 Vrms / 0 ~ 1 Vrms: ±0.3% of FSR
0 ~ 500 mVrms / 0 ~ 150 mVrms: ±0.7% of FSR
Sampling Rate10 Hz (total channels)
Input Impedance>2 MΩ
Overvoltage Protection±35 Vrms/±28 VDC
Individual Channel ConfigurationYes
Digital Output
Channels4
TypeIsolated Open Collector
Sink/Source (NPN/PNP)Sink
Load Voltage+5 ~ +50 VDC
Load Current700 mA/channel
Overvoltage Protection+60 VDC
Overload Protection1.4 A
Short-circuit ProtectionYes
Power on ValueProgrammable
Safe ValueProgrammable
Ethernet
Ports2 x RJ-45, 10/100 Base-TX, Swtich Ports
PoEYes
LAN bypassYes
Access ControlID, Password and IP Filter
ProtocolModbus TCP, Modbus UDP
Power
Reverse Polarity ProtectionYes
Consumption4.4 W (max.)
Powered from PoEIEEE 802.3af, Class1
Powered from Terminal Block+12 ~ +48 VDC
Mechanical
Dimensions (mm)76 x 120 x 42 (W x L x H)
InstallationDIN-Rail mounting
Environment
Operating Temperature-25 ~ +75 °C
Storage Temperature-30 ~ +80 °C
Humidity10 ~ 90% RH, Non-condensing

Specifications as published by the manufacturer. Subject to change.

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