The SIWAREX U modules with the new order number 7MH4950-*AA01 are fully compatible as regards software with the modules with order number 7MH4601-1*A01, which were produced from May 1997 to ca. November 2007.
As regards hardware, compatibility is also guaranteed, although from ca. November 2007 the modules work with a lower supply voltage for the load cells (6 V instead of 10 V), thus requiring less energy. The remaining hardware features (ports, frame size, pin assignment, etc.) remain unchanged. In this way, the replacement of a defective module 7MH4601-1*A01 with the order number 7MH4950-*AA01 is possible without any difficulty.
Newly implemented was the possibility with the modules 7MH4950-*AA01 to process the communication with the SIMATIC CPU alternatively via a function block, which is prepared in the project "Getting Started". The functioning of the new function block has already proven itself with the SIWAREX modules (SIWAREX FTA, SIWAREX FTC, SIWAREX CS).
The program SIWATOOL U was also updated and corresponds in its design and functionality to the SIWATOOL programs for SIWAREX FTA, SIWAREX FTC, SIWAREX CS, and SIWAREX MS.
With the new SIWATOOL U, the modules with the order number 7MH4601-1*A01, which were produced up to ca. October 2007, can also be operated. In this way, the saved scale data (xxx.sku) can be imported into the new SIWATOOL U environment and further used (xxx.swu).