What options exist for using the position or time data from a GPS receiver in an S7-200?
Configuration notes: This FAQ describes how to use data from a GPS receiver with an S7-200. Possible applications: • Geographical localization worldwide (position, altitude, speed) • Time synchronization worldwide • Track&Trace applications in connection with the Micro Automation Set 21 (Entry ID: 22537809) Requirement: • S7-200 CPU224 XP or CPU226 with a second communication interface free • GPS receiver with a serial interface and NMEA data format • RS232 PC/PPI cable • Gender changer (for connecting the serial interface on the GPS receiver to the PC/PPI cable) Communication: The GPS receiver cyclically sends ASCII strings (with position, time and system data) in NMEA format to the S7-200. The S7-200 uses the internal interface in user-programmable communication mode (Freeport). The ASCII strings in the NMEA format are saved in the data block. NMEA format: The NMEA format defines how and where data is “packed” in the ASCII string. There are different data records, such as for the geo
