Digital Loggers

Frequently Asked Questions

Updated 04/17/2018


Download a users guide.  Check the specs.

Watch the overview video - or call (408) 330-5599 for a free trial.

What are the latest new features?
Do you support MQTT?
How do I set up network access from Windows? from a Mac? - Thanks to John McClintock for these instructions
How can I connect to Amazon Echo, Dot, or Tap?
How do I set up router port forwarding for Internet access? -Thanks to Mike G.  Find other port forwarding examples here.
How can I enable plaintext authentication for compatibility with cURL and earlier models?
What is the RestAPI?
How do the meters work?
How can I access the switch from my own app or remote script?
How can I get a dry contact relay output?
What's the new Lua Scripting Language all about?
How do I enable AutoPing?  Explain the Auto-Ping settings
How do I enable Battery Backup? How long will the battery run? What is the battery lifetime?
How can I access the sensor port?
My program ran fine on an older DLI power controller, but doesn't connect now. Help!
What's syslog?  How can I keep an event log?
What is the default IP address?  How do I reset to defaults?  What is the default password
How can I control the switch from my own apps? 
Can you develop custom firmware or custom hardware for my app?
Is this product compatible with legacy plaintext scripts and http control?
Do you have a C++ programming example?
Do you have a .NET programming example?
Do you have a Java programming example?
Do you have a compiled Windows command line tool or a Perl example?
Do you have a Python programming example?
Do you have a Crestron control module?
How can I spawn the Perl script or Python code from LabView?
What's the cURL API?
How can I set up IFTTT?
What's the Scripting Language all about?
Do you have a ruggedized version? Something suitable for mobile use?
Do I need a crossover cable?
How can I control the switch from my own applications?   
How can I send HTTP requests directly to the switch?
Can you develop custom firmware or custom hardware for my app?
What are the CRITICAL and PROTECT functions?
Where can I find the manual or spec sheet for the earlier model?
Where can I find iPhone, iPad, or Android apps for Digital Loggers?

Question:  What are the latest new features?
Answer:  On the firmware side, we've improved the AutoPing configuration and improved WeMo emulation for Alexa users. You get better MQTT, improved SSH, and  a better internal notification system. The RestAPI is continually being expanded and improved. New EPCR6 hardware includes a RJ-12 sensor port suitable for use with DHT11 or DS18B20 type external temperature and temp/humidity sensors. Sensor probes are optional, inexpensive and in stock. New transformers give higher accuracy voltage monitoring. Battery life and charging is improved. There's also a new DB-9 expansion port for future expansion. Firmware upgrades are always free.

Question:  What is the current version of firmware?
Answer:  You're now on the FAQ page for Ethernet Power Controller 6, P/N EPCR6.  Find the revision history here, and firmware update instructions here.

Question:  I have a legacy model Ethernet Power Controlller II, III, V, or  PC-8000 model.  Where can I find information?
Answer:  For firmware information on PC-8000 units without power metering, (circa 2008-9), click here. 
For information on the Ethernet Power Controller II or Ethernet Power Controller II LCD (circa 2010 to 2011), click here. 
The manual for the P/N EPCR3 built from 2011 to 2014 is here.  The manual for the P/N EPCR5 built from 2015 to 2018 is here. You can always call or email for support, no matter how old the product is. We'll help.

Question:  How does the sensor port work?



The sensor port is an ESD protected TTL level bidirectional port.  It's suitable for Dallas 18B20 or DHT11 style sensors. The RJ12 pinout is: 1 &2 - 5V power out. 5V current is limited to about 50mA.  Pins 3 Data (bidirectional) & clock. Pin 4 is ground. The power controller will automatically detect the attached sensor, and it can be interrogated via the RestAPI. There is also a DB-9 connector for future firmware expansion or custom-built peripherals.  Email with your needs and suggestions.

Question:  How do the meters work?
Answer:  The Ethernet Power Controller 6 has four internal meters.  Bus A and Bus B each have one separate current and voltage meter.  The voltage meters measure the input voltage on each bus.  The current meters measure the total current drain for all the switched devices on each bus.  One un-switched outlet on each bus bypasses the meters to provide un-metered "house power". Keep this in mind when planning your wiring. The un-switched outlets are located in the center of the panel.  Although the product will easily handle 15A on each bus, it's recommended to stay in the 13A range or so to add headroom for dynamic loads. The circuit breakers are a "guaranteed hold" at 14.8A.  There is a manual power factor correction which can be entered for each bus to correct non-PFC loads.  Histograms and meter readouts can be customized to suit your needs.   Two cumulative energy meters are provided. They accumulate power use over time to display energy in kWh.  A power billing / notification utility for Windows is here.  Note that the firmware now includes internal notification, so no external utilities are necessary. In version 6, the voltage metering time constant has been changed to ~1500ms.  DB9 ADC inputs may also be supported in future firmware releases.

Question:  How do I enable battery backup?
Answer:  Open the battery hatch on the right side of the faceplate by gently pressing the tab behind the faceplate to the right and pulling the hatch cover forward.  Connect the polarized battery connector, positive-to-positive, negative-to-negative.  The battery will power the web server, internal logic, Ethernet, WiFi and LCD for several minutes during a power outage.  Recharge time to 90% capacity is 48 hours.  Ethernet Power Controller 6 batteries are NiCdx4.  Typical battery life for the latest version 6 design is 48 months at 100F.  Do not attempt to replace the battery with any other type of cell.  Call 408 330-5599 for the correct replacements and specify model when ordering.  Batteries are now shipped "plugged in", so opening the hatch is no longer  necessary, but do allow 48 hours for charging. We recommend disconnecting the battery if the product is stored for 3 months or longer.

Question: How can I control and customize the LCD display?
Answer:  The LCD can be used to display current and voltage settings, outlet status, or a messages of your choice.  You can operate the LCD in "billboard" style, displaying a series of user defined messages.  To customize the LCD, you'll want to write a script using the Lua scripting language.   You can also use the display to send messages from remote systems (ie. service alert warnings). In version 6, we are currently investigating a "bug" which may cause the display to temporarily "blank" in certain unusual scenarios.  We expect to resolve this in April.

Question:  What is the default IP address?  How do I reset to defaults?  What is the default password?

To reset to defaults, use a non-conductive pen or toothpick (Not a paperclip, please!) to click the recessed "Reset to default" button located near the network connector. 
Wait for the message to stop scrolling. You can press the Up/Down arrows to select the type of reset needed. Holding down the reset button will reset everything to defaults.
The default user is "admin" and password is "1234".

Question:  How can I control the switch from my own applications?

For new development, the best place to start is the RestAPI.  You can also download the latest User Utility which includes PowerMan support for Linux. Your application can use HTTP communications. There are programming examples from several languages listed in the top section.
Windows users can download a Perl interpreter to run the script version which is compatible with all DLI power controllers.

Question:  Can you develop custom firmware for my application?
Answer:  Gladly.  We've done this for many customers.  After we agree on a -very specific- project description, we can send you an estimate of the time involved to code, debug and test. Our firmware development team has a current backlog of at least 6 weeks, so if you need something sooner, please have a look at the Lua scripting language.  It's relatively easy to use.

Question:  Can you develop custom hardware for my application?
Answer:  Gladly. Ethernet Power Controller version 6 has additional I/O for driving either internal or external hardware. We've done custom work for many customers and are happy to provide references. A kick-off meeting in Silicon Valley is usually the best starting point.  Call 408 330-5599 with your requirements.  To amortize NRE, practical minimum order quantities are typically 100-1000 units.

Question:  Do you support PowerMan?
Answer:  Yes, absolutely, even in our older models.  The latest Ethernet Power Controller 6 compatible code including the new sensor API is on github.

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If we haven't answered your questions here, please call (408) 330-5599 or send us an email. 
We'll be glad to help.
© Digital Loggers, Inc. 2018.