Frequently Asked Questions

View answers to our most frequently asked questions.

Accessibility

How do I access my ControlByWeb® module from the Internet?

Accessing a ControlByWeb module from the Internet is a fairly simple concept, but it is highly dependent on your internet router (or modem/gateway) and your Internet Service Provider ... More

Are ControlByWeb modules compatible with wireless?

Yes, all ControlByWeb Ethernet products are compatible with wireless networks, although they will require additional hardware such as an wireless Ethernet bridge ... More

Can I view multiple ControlByWeb products in one location/webpage?

There are several options available to view inputs and monitor/control relays of several different units in one location. The options will briefly be explained below ... More

How do I perform a reset to factory defaults?

If you have forgotten the password or the IP address assigned to any ControlByWeb product, the device may be reset back to factory defaults. All settings will be reset ... More

Email

How do I set up email?

Many ControlByWeb devices support email notification. It will require the use of an outgoing email server (SMTP server). Most Internet providers have an outgoing email server available ... More

My email isn't working, any troubleshooting advice?

For email troubleshooting, there are a few things you can try. First, try to send a test email by entering the following XML command into the browser ... More

Sensors

How Can I Extend 1-Wire Temperature/Humidity Sensors?

Many factors determine the maximum length of the cable, including: Sensor network topology, sensor type, number of sensors, cable type, cable length, ambient electromagnetic ... More

My temp sensor occasionally shows x.x, 185F, or 85C. Any suggestions?

ControlByWeb devices are compatible with any one-wire (DS18B20) digital temperature sensor. These include the X-DTS-U, X-DTS-S3C, and X-DTS-S32C sensors. These sensors ... More

Products

What's the difference between the X-400 and X-600M

ControlByWeb's expandable I/O controllers are the ultimate solution for monitoring and controlling both small and large systems, and other systems which require a unique ... More

Can ControlByWeb units be installed in outdoor locations?

ControlByWeb units are designed with wide operating temperature ranges but do not have any special protections against moisture. They are best suited for ... More

Power

Which power supply should I use?

We offer products with several different power supply options: Industrial products that have a part number that ends with an "-I" These products require a DC power supply within ... More

How do I protect my ControlByWeb devices from over-voltage conditions (e.g., Lightning)?

Learn how to reduce the risk of over-voltage conditions, such as lightning damage to ControlByWeb products. This briefly describes where lightning protection ... More

Why don't you include a power supply with your products?

Quick Answer: Most of our products are sold as components which are typically used as part of a larger monitoring or control system. Rather than using separate power supplies for each component in the system, it is usually cleaner and more convenient to use a single power supply to power multiple devices in the system. For this reason, we sell our power supplies separately. Example: If you install one WebRelay™ and two Five Input Modules™ right next to each other, rather than having three power supplies, you can use a single power supply to power all three units which offers a nicer, more compact installation.

Programming

What are scripts? Do I need to use them?

Several ControlByWeb products have the ability to run scripts. Scripts are a set of instructions similar to a small program. Scripts can be used for advanced ... More