Measurement Computing PointScan Road Map rev.2.0 - Manual (Page 22)

Download the Configuration for ”RS-485 Connected” Modules
These instructions pertain to “RS-485 connected” modules. These can be PointScan/200 Series,
PointScan/100 Series [in RS-485 mode], or a combination of the two types of modules.
When you are using PointScan/200 Series modules or a combination of
PointScan/100 Series and /200 Series modules, a PointScan/440 Serial
Interface Module is required to perform the download function.
If the “RS-485 connected” modules consist only of PointScan/100 modules a
PointScan/440 is not required. In this case you can perform the download over
the Ethernet one module at a time. To do this:
Perform Step 7 (for configuring the module in IOToolKit)
Follow the download instructions for “Ethernet-connected”
/100 Series modules per Step 9.
Complete all downloads.
Skip to Step 10 and continue the setup process.
Downloading the configuration to “RS-485 connected” modules is done using the serial connection
between the computer and the modules.
Note that the following steps [a through j] are performed for one module at a time. They are then
repeated for each additional “RS-485 connected” module.
Setup the hardware:
THIS POINTSCAN/440 SETUP METHOD MAY NOT APPLY TO YOUR SYSTEM. IF YOU
ARE NOT SURE OF /440 APPLICABILITY, RE-READ THE PRECEDING NOTE BEFORE
CONTINUING.
(a) Remove the applicable “RS-485 connected” module from its base. This can be done while
the PointScan system is still powered.
(b) Install a PointScan/440 module in its place. Make sure that you have the cable connected
between the /440 module and your computer’s serial port.
Verify that parameters are properly set:
(c) Click on the Com Port Device icon.
(d) Go to Device/Select [or click on the Select Device icon]. The Select Communications
Device window (following figure) will appear.
(e) Verify that the parameters are set as follows. Change the settings as required.
• Connection: Single station
• Port: use Com Port
• Com port: COM1 (or whichever serial port you are using on your computer)
• Baud rate:9600 (default - or match computer port setting)
Parity: None (default - or match computer port setting)
ng)
•
• Data bits: 8 bit binary/RTU data (default - or match computer port setti
• Stop bits: 1 (default - or match computer port setting)
• Flow control: None (default - or match computer port setting). Note that s ome
USB-to-Serial Port converters may require Xon/Xoff Flow control to be enabled.
• Timeout: 3000 mS
• Test I/O default protocol: I/O for Windows
(f) Click to close the Select Communication Device window.
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