Resources|Blog|PLC WorkShop Suite for Siemens 505|PLC WorkShop Suite for Siemens 505 v3.51 Release Notes PLC WorkShop Suite for Siemens 505 v3.51 Release Notes Posted: 7/30/2004 Features This version of PLC WorkShop for TI 505 is exactly the same as version 3.50, except for the new telephone number. Contact Sales