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6
6-1
GFK-0121E
Chapter 6 Reading CPU Memory
This chapter explains how to use a Hand-held Monitor to read data in a specified memory location in a
Series 90–70, Series Six, or Series Five PLC. New data from the specified memory location is displayed
every three seconds.
General Instructions _________________________________________
1. Be sure the Hand-held Monitor is set up for the type of PLC host you want to read data from. (See
page 3-5 for instructions).
2. If the Hand-held Monitor is NOT attached directly to the PLC’s bus controller, or if another device is
designated as “active” when you enter the Device Memory function, use the F4 (SBA) key and enter
the bus controller’s Device Number (serial bus address).
3. To read data from the selected bus controller, press F4 from the Main Menu and specify the memory
location to be read as instructed below.