Description
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The module ET-7044 CR provides 8 wet contact digital inputs and 8 sink-type digital outputs. It features optical isolation for 3750 Vrms of transient overvoltage protection but doesn’t provide channel-to-channel isolation.
Each input can be used as a 32-bit counter and each output can drive 300 mA load. The power-on value and safe value of digital output are programmable. It can safely be used in applications where hazardous voltages are present.
Specifications
Build
• network adapter
• 10/100 Mbit/s: 1
• 10/100 Mbit/s interface: RJ-45
Industry protocol
• modbus TCP: slave
• modbus UDP: slave
Digital input
• count: 8
• type: Wet contact
• Sink/Source: electricity consumer (sink), electricity supplier (source)
• digital „1“ Wet Contact: 10 … 50 V
• digital „0“ Wet Contact: 0 … 4 V
• counter: 500 Hz, 32 bit
Digital output
• count: 8
• type: Open-Collector
• sink/source: electricity consumer (sink)
• output voltage: 10 … 40 V
• max. output current: 300 mA
Interface
• Screw Terminal
Watchdog
• Hardware: ja
• Reaktionszeit: 0.8 second
• Programmierbar: ja
System performance
• input voltage DC: 10 … 30 V
• energy consumption: 2.4 W
• power draw protection: polarity inversion
Operating conditions
• temperature: -25 … 75 °C
• humidity: 10 … 90 % (non-condensing)
Storage conditions
• temperature range: -30 … 80 °C
Dimensions and weight
• width: 72 mm
• height: 123 mm
• depth: 35 mm