2 Connecting via USB or RS-232
Connecting via USB or RS-232
Setting up a USB or RS-232 connection is a good way to begin communicating with your datalogger.
Because these connections do not require configuration (like an IP address), you need only set up the
communication between your computer and the datalogger.
Initial setup instruction follows. These settings can be revisited using the datalogger support software
Edit Datalogger Setup option (
).
1.
Using datalogger support software, launch the EZSetup Wizard.
•
PC200W and PC400 users, click the Add Datalogger button (
).
•
LoggerNet users, click the Setup ( ) option, click the View menu to ensure you are in the
EZ (Simplified) view, then click the Add Datalogger button.
2.
Click Next.
3.
Select your datalogger from the list, type a name for your datalogger (for example, a site or
project name), and click Next.
4.
If prompted, select the Direct Connect connection type and click Next.
5.
If this is the first time connecting this computer to a CR300 series via USB, click the Install
USB Driver button, select your datalogger, click Install, and follow the prompts to install the
USB drivers.
6.
Plug the datalogger into your computer using a USB or RS-232 cable. The USB connection
supplies 5V power as well as a communication link, which is adequate for setup, but a 12V
battery will be needed for field deployment. If using RS-232, external power must be provided to
the datalogger.
Note: The Power LED on the datalogger indicates the program and power state. Because
the datalogger ships with a program set to run on power-up, the Power LED flashes 3 times
every 10 seconds when powered over USB. When powered with a 12 V battery, it flashes 1
time every 10 seconds.
7.
From the COM Port list, select the COM port used for your datalogger.
8.
USB and RS-232 connections do not typically require a COM Port Communication Delay - this
allows time for the hardware devices to "wake up" and negotiate a communication link. Accept
the default value of 00 seconds and click Next.
9.
The baud rate and PakBus address must match the hardware settings for your datalogger. A USB
connection does not require a baud rate selection, RS-232 connections default to 115200 baud,
and the default PakBus address is 1.
•
Set an Extra Response Time if you have a difficult or marginal connection and you want the
datalogger support software to wait a certain amount of time before returning a
communication failure error.
•
LoggerNet and PC400 users can set a Max Time On-Line to limit the amount of time the
datalogger remains connected. When the datalogger is contacted, communication with it is
terminated when this time limit is exceeded. A value of 0 in this field indicates that there is
no time limit for maintaining a connection to the datalogger.
10.
Click Next.
11.
By default, the datalogger does not use a security code or a PakBus encryption key. Therefore,
the Security Code can be set to 0 and the PakBus Encryption Key can be left blank. If either
setting has been changed, enter the new code or key.
