6DS1727-8AA SIEMENS PC BOARD Description And Features The Siemens 6DS1727-8AA is marketed as a Teleperm XP / Teleperm module / control board / PC board in automation / process control systems. It is described sometimes as a control module or signal processing unit in Teleperm / Teleperm M series control systems. The supplier listings do not supply deep technical specs (voltage, current, I/O count, timing) with confidence; many are marketing or catalog-level descriptions. One