A typical problem in communicating with PLC's is due to the COM Port. Older computers have a designated COM1. New computers do not have a designated COM port and a USB to serial convertor is used. The convertor must be set up for a communication port (ex: COM1). Also, one should check the settings in the software, and adjust the COM port settings to match the settings of the convertor. For the AC010: From the top menu, go to: Online > Serial Interface Setup > Select the appropriate COM port (ex: COM 1, COM 2, COM 3, COM 4) to match the USB Convertor For the AC31 PLC's : From the top menu, go to: Online > Communication Parameters > Set-up the appropriate gateway with the COM port (ex: COM 1, COM 2, COM 3, COM 4) to match the USB Convertor.
The first thing you need to know to is the Input & Output (I/O)count.
# of Digital Inputs (voltage levels 24Vdc, 110Vac)
# of Digital Outputs (voltage levels: 24Vdc, 110Vac, Relay)
# of Analog Inputs (4-20mA, 0-10V, TC, RTD, etc.)
# of Analog Outputs (4-20mA, 0-10V, TC, RTD, etc.)
Next you need to know if there are any Remote Drops and (how many, and how much I/O for each)
Next you need to know what kind of communication is required if any (Modbus, P-Bus, Ethernet, Devicenet, etc)
When using semi-conductor fuses a type 2 co-ordination can be achieved. It is possible to use an MCCB or MMS instead but then with a type 1 co-ordination.
The minimum and maximum value where we can guarantee full function is -15% to +10% of the rated value.
It is possible with all types of ABB softstarters as long as the curve is sinusoidal.
If the current transformers of the softstarter can be installed so that the measuring can be performed when by-passed a separate relay is not required; otherwise yes.