Yokogawa SPS24 - Manual (Page 16)

<2. Preparation and Basic Operation>
2-6
IM 12A01S02-01E 1st Edition : May 10, 2013-00
2.5 How to use the SPS24
Go to Windows [Start] – [All Programs] – [Yokogawa SENCOM PC Software] and click
“SENCOM PC Software” to launch the SPS24.
l First launch
At first launch, the “Please set RS port” message appears. Click “OK” to close the dialog box.
Confirm the sensor connection and go to [Setup] – [RS port No.] to assign the RS port number to
the sensor.
Toolbar
Select USB RS-485 Port.
Click to save.
Connection information field
Figure 2.2 Example of RS port number setting (2 sensors are connected simultaneously)
Select USB RS-485 Port and click “Save” to store the change.
Clicking [Connect] in the connection information field detects the sensor and displays the
connected sensor button.
The * mark after the COM number indicates the active connection.
l Multiple Sensor Connection
To connect multiple sensors, connect multiple interface boxes to the USB ports on the PC using
USB cables.
Once the USB cables are connected, RS port numbers (COM numbers) are automatically
allocated. RS port numbers do not change even after disconnecting USB cables.
In the case of Windows XP, the COM port driver must be installed for every connection.
The RS port number of the interface box can be confirmed by using the connected sensor button
ID (serial No.) which appears every time a sensor is connected.
To allocate a particular interface box to sensors 1 to 4, set the RS port number individually by
connecting one cable at a time.
To change the allocation, click [Disconnect] and perform the configuration again.