This sample application shows how to access some of the variables from Siemens’ S7-200 PLC via M-Prot driver. Note: this application has been developed with Elipse SCADA v2.29 b092. Attachments:…
Question: Can I establish communication with a PLC via M-Prot driver and a Siemens’ USB cable? Solution: No, you can’t. To communicate using a USB cable, you must use either…
Question: How can I establish communication with an S7-200 PLC via PPI? Solution: To establish communication with an S7-200 PLC via PPI, you must use version 2.09 (or higher) of…
Question: How can an S7-200’s VD20 be read via Ethernet with M-Prot driver? Solution: To establish communication with an S7-200 CP243 via Ethernet, you must set Network field as ISOTCP243.…
Question: How can I access a bit from a memory byte from a S7-200 at E3? Solution: To do so, set a tag’s N2 parameter as 108, and its N4…
Question: Can the bit from a digital input be read? Can Bool-type tags be used? Solution: No; this can only be done indirectly. To read/write a single bit, the whole…
Question: Is there a driver to send SMS messages via E3? Solution: Yes, there is. To do so, you can use the driver Siemens M20. If you are not equipped…
Question: What settings are required to establish communication between Omron FINS driver and a PLC? Solution: In the example below, the PLC’s model is CJ1M – CPU13-ETN. This CPU’s model…
Question: How can I set FINS driver to read negative numbers? Solution: According to the driver’s manual, N2 parameter’s format is TANN. In this case (N2=0111), data type is either…
Question: How can I establish communication with a PLC S7200 by using a USB serial converter? Solution: To do so, since the driver will always keep its parity as EVEN,…