GE DL-1200 RTU

Description

Technical Parameters (Key Specs)

• Processor: 32-bit RISC, 150 MHz

• Memory: 8 MB Flash / 4 MB RAM

• I/O Capacity (Built-in): 8 digital inputs, 4 digital outputs, 4 analog inputs (0–20 mA / 4–20 mA / ±10 V configurable)

• Digital Inputs: Dry/wet contacts, 24–125 V DC

• Digital Outputs: Form C relays, 5 A @ 250 V AC / 30 V DC

• Analog Input Resolution: 16-bit, accuracy ±0.1%

• Communication Ports: 1x Ethernet (10/100 Mbps), 1x RS-232, 1x RS-485

• Protocol Support: DNP3 (serial/TCP), MODBUS (RTU/TCP), IEC 60870-5-101/104

• Expansion: Supports external I/O modules via RS-485 (up to 64 additional points)

• Power Supply: 24–48 V DC or 110–250 V AC/DC (wide-range, field-selectable)

• Operating Temp: –40°C to +75°C

• Protection Class: IP67 (weatherproof, suitable for pole-mount or outdoor cabinets without additional enclosure)

• Mounting: Pole, wall, or DIN-rail

• Compliance: IEC 61850-3, IEEE 1613, CE, UL

Advantages & Features

• All-in-one compact design – the GE DL-1200 RTU integrates CPU, I/O, and communications in a single IP67-rated unit, eliminating separate enclosures for many applications

• Weatherproof and rugged – IP67 rating means the GE DL-1200 RTU can be mounted directly outdoors on poles or skids without a protective cabinet, reducing installation costs

• Low power consumption – draws only 5 W typical, making the GE DL-1200 RTU ideal for solar-powered remote sites

• Built-in data logging – stores up to 5,000 events with 1 ms SOE (Sequence of Events) timestamps

• Protocol flexibility – simultaneous DNP3 and MODBUS operation; the GE DL-1200 RTU can talk to master stations and field devices on different protocols at the same time

• Local logic execution – IEC 61131-3 programming (Ladder, ST) for distributed automation without relying on the master station

• Firmware upgradeable via Ethernet or serial

• Secure communication – supports encryption and authentication per NERC CIP

• Battery-backed RTC – maintains time during power loss

Application Cases

• Distribution feeder monitoring – the GE DL-1200 RTU is pole-mounted on utility distribution lines, collecting voltage/current data and reporting faults to the SCADA master via DNP3 over cellular or radio

• Remote well sites (oil & gas) – monitoring pump pressure, flow, and temperature, while controlling start/stop via the GE DL-1200 RTU‘s onboard relays, communicating over satellite or microwave links

• Water distribution pressure monitoring – the GE DL-1200 RTU reads pressure transmitters at remote booster stations and transmits alarms via MODBUS over radio to the central control room

• Solar farm environmental monitoring – collecting irradiance, wind speed, and panel temperature data, with the GE DL-1200 RTU sending IEC 60870-5-104 data to the utility control center

• Mine site dewatering – managing pump operations based on water levels, with the GE DL-1200 RTU executing local logic and reporting to surface SCADA

Comparison with Competitors

The GE DL-1200 RTU stands out for its IP67 weatherproof rating, allowing direct outdoor mounting without extra cabinets – a significant cost saver. Compared to Siemens RTU3030C, the GE DL-1200 RTU offers more built-in I/O and wider temperature range.

Selection Suggestions

• Outdoor deployment: The IP67 rating of the GE DL-1200 RTU makes it the ideal choice for pole-mounted, skid-mounted, or exposed installations where a protective enclosure would be impractical or costly

• I/O requirements: The built-in 8 DI / 4 DO / 4 AI of the GE DL-1200 RTU suits small to medium remote sites – for larger I/O counts, add external MODBUS RTU I/O modules via the RS-485 port (up to 64 additional points)

• Communication infrastructure: The GE DL-1200 RTU works with wired Ethernet, cellular routers, or radio modems via RS-232/485 – verify your backhaul medium and protocol compatibility

• Power source: The GE DL-1200 RTU consumes only 5 W, making it suitable for solar-powered installations – calculate battery and panel sizing based on solar insolation at your site

• Local control needs: If you require distributed logic (e.g., pump sequencing, alarm conditioning) independent of the master, the GE DL-1200 RTU with IEC 61131-3 programming is fully capable

• Software: Use GE’s DL-Series Configuration Tool or EnerVista for setup, point mapping, and logic programming

Precautions

• Power supply isolation – the GE DL-1200 RTU accepts wide-range AC/DC, but ensure the supply is stable – transients above 300 V AC can damage the internal power supply; use surge protectors in lightning-prone areas

• Grounding – the GE DL-1200 RTU requires a solid earth ground (≤ 1 Ω) for surge protection and EMI immunity – use the dedicated ground terminal, and do not rely on pole or pipe grounding alone

• Analog input wiring – use shielded twisted-pair cables; the GE DL-1200 RTU analog inputs are not isolated from each other – if using transmitters with different ground potentials, install external signal isolators

• Digital output relay life – relays are rated for 100,000 operations at full load – for frequent cycling (e.g., PWM control), use external solid-state relays to extend the GE DL-1200 RTU‘s onboard relay life

• Communication wiring – for RS-485, use proper termination and biasing resistors if daisy-chaining multiple devices; the GE DL-1200 RTU includes switchable termination but verify settings

• Firmware updates – use only GE-provided firmware and cables; never interrupt a firmware update on the GE DL-1200 RTU, as this can permanently brick the unit

• SIM card/cellular integration – if using external cellular router, ensure the router supports the GE DL-1200 RTU‘s protocol timing (DNP3 interval scan) – mismatched timeouts can cause communication failures

• Environmental sealing – although the GE DL-1200 RTU is IP67, ensure cable glands are properly torqued and unused ports are sealed with plugs to maintain weatherproof integrity

• Solar charging – for solar sites, use a charge controller compatible with the GE DL-1200 RTU‘s 24 V or 48 V DC input range – undervoltage below 18 V causes unpredictable behavior

• Storage and commissioning – if the GE DL-1200 RTU is stored for more than 6 months, cycle power for 24 hours before deployment to reform capacitors

• Cybersecurity – change default passwords immediately; the GE DL-1200 RTU ships with factory defaults that can be exploited if exposed to public networks – enable encryption if required by NERC CIP

• Disposal – contains lithium battery (RTC) – dispose per local electronic waste regulations; do not incinerate

• Do not use for SIL safety functions – the GE DL-1200 RTU is a standard RTU, not safety-certified – use dedicated safety relays or SIL-rated controllers for emergency shutdown or personnel protection

SCHNEIDER 140CPU67160
ICS TRIPLEX T8431
SCHNEIDER 140CPU65150