
CHAPTER 6: TROUBLESHOOTING AND Q&A
groov Box User’s Guide
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1. Plug the control network into ETH1 on the groov Box. (Remember, your computer network is
plugged into ETH0. The two Ethernet network interfaces on the Box are independent, so that
keeps the two network subnets separate.)
2. Follow the steps in “Configuring ETH1 for the Control Network” on page 31 to configure the
ETH1 connection.
3. Now try configuring your tag server or controller again. This time groov should be able to find
it.
Q: I can’t log into groov using the hostname. What should I do?
When starting a groov Box, always wait until the SYS LED has stopped blinking before you try to
access groov. Otherwise, you might not be able to log in using the hostname. If this happens, try one
of the following methods to log in:
Method 1: Open groov Find and locate the IP address of the groov you want to log into. Log into
groov using the IP address. After some time passes, you should be able to log in again using the
hostname.
Method 2: Open a command prompt and enter
ipconfig /flushdns. Then log into groov
using the hostname.
Q: I can’t read (or write) to my Modbus/TCP device OR the data doesn’t make
sense. What’s wrong?
Modbus/TCP devices, though based on a standard protocol, may be set up differently from one
another. Some use zero-based addressing and some use one-based addressing. Some devices don’t
support all Modbus functions. Modbus/TCP devices also vary in the way they present float data. And
device documentation sometimes doesn’t specify how the device is set up.
If you’re having trouble reading or writing to your device, or if the data is clearly wrong, you probably
need to change settings for your Modbus device. In groov Build, choose Configure > Devices and
Tags and locate your device in the list. Follow instructions in the groov Build and View User’s Guide to
understand and change settings. You may need to try different combinations of settings to see what
works.
Additional Questions and Answers
This section answers questions you might have about the groov Box.
Q: Where should I locate the groov Box?
A: The groov Box is an industrial appliance made to operate in tough environments, so it doesn’t
have to be pampered. Make sure you check the specs for temperature and humidity, and then place
it where you can connect it to both your company computer network and your control network.
(You will use separate connectors on the groov Box for these two networks to keep them physically
separated—better for security.)
If you’re using the wireless LAN, choose a location where the signal is constant and strong. Wireless
networks can be unreliable unless carefully designed and periodically checked.
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