1. Using 'USC Config 106' (windows application) and a COA703 computer adapter (RS232 connection).
   This software stores the readings in an MS ACCESS data base that can be read by standard MS office applications. The 'USC Config 106' software must be running on the PC the whole time logging is in progress.
   Only one USC701 can be connected at a time.
   Reference:
   • HLP1045, USC Config – w. Record Readings.
   • HLP0014, USC Config – l. Import Export Data.
2. Using 'apcscoa.ocx' (windows ActiveX control) and a COA703 computer adapter (RS232 connection).
   The ActiveX component is available from the APCS web site. This component can be impeded into MS office applications such as EXCEL to directly read data. Various programing languages can also directly use ActiveX components. Multiple USC701 modules can be connected at a time, however this will require multiple COA703 and RS232 serial ports.
   Reference:
• HLP1082, Free COA703 ActiveX Control For USC701
3. Using a standard terminal program and a USC701 fitted with a field bus card programmed as 'Serial talk only'.
   In this mode predefined memories are sent out the serial port at predefined intervals. This method can be used with RS232 or RS485 interface. Only one USC701 can be connected at a time to each available serial port.
   Reference:
   • MA70141, USC FIELDBUS; MODBUS and TALKONLY'.
     This manual can be accessed from the USC701 product page
     
4. Using a MODBUS MASTER a USC701 fitted with a field bus card, MODBUS RTU and ASCII are supported.
   The master program requests specific information of connected USC701 modules connected at specific addresses. The master program can reside in a PC or a PLC. This method can be used with RS232 (one USC701 only) or RS485 interface up to 200 USC701 units, limited by cable loss.
   APCS has a free Visual Basic demonstration with source code that operates MODBUS RTU. This program demonstrates most useful functions when used with the USC701. A developer could modify this program as required or look at the logs it makes to develop his own.
   Reference:
   • HLP1081, Free USC MODUS Demonstration with VB Source Code

Notice

The applications referred to in this article have been written and tested however not all the articles have been written and do not currently appear on the APCS web site. If there is interest in specific articles or applications they will be made available to you.