S7 driver allows the direct integration of Siemens S7 controllers into the Niagara system.
The S7 series PLCs are very widespread devices, and our driver runs on dozens of installations throughout Europe.
The Tridium Niagara driver allows connecting to Siemens S7 PLC via native S7 protocol over ethernet. The S7 PLC could be upgraded with Niagara graphics or integrated with various BMS protocols supported by Niagara.
The driver provides support for communication with Siemens PLC's S300, S400, and S1200 series over native S7 Ethernet protocol. The driver reads data from the DB part of memory. Supported data formats are Bit, Word, Short, Double Word, Double Int, Float, Date, String, and Printable String.
Niagara-powered device with software v3.8 (AX), v4.10 (N4) or later, including Jace8000, Supervisor or their OEM versions
• DR-SC-S7-250 – Driver for integration Siemens S7 PLC – 250 data points • DR-SC-S7-UNL – Driver for integration Siemens S7 PLC – unlimited data points
Question: The driver doesn’t establish communication with S1200 PLC.
Answer: Check the IP address and set the slot number to “1”.
Question: How to set bit offset for the bit point / writable?
Answer: Open the proxy Ext under bit point property sheet and set the required offset in the property Bit offset.
Question: Can I add the DB manually without connected PLC?
Answer: Yes, all the points can be added manually before installation on site.
Question: The data in DB are empty or the point under DB in in fault.
Answer: Check the Block Number and Mcc length with the program in S7 PLC. Check the property Point Type under point Proxy Ext.