WAGO 750-352 Modbus – TestStand StepType’s February 21, 2018July 10, 2017 by Kszewczyk Wago 750-352 with DI/DO AI and CAN Gateway, controlled by LabVIEW, used in TestStand as StepType. Communication by MODBUS. Few screen shots from StepType I wrote for WAGO 750-352.