GE 90-30/20/Micro manual 180

Contents

Figure 2-1. PLC Sweep	2-3
Figure 2-2. Programmer Communications Window Flow Chart	2-10
Figure 2-3. System Communications Window Flow Chart	2-11
Figure 2-4. PCM Communications with the PLC	2-12
Figure 2-5. Power-Up Sequence	2-31
Figure 2-6. Time-Tick Contact Timing Diagram	2-35
Figure 2-7. Series 90-30 I/O Structure	2-38
Figure 2-8. Model 30 I/O Modules	2-39
Independent Term Algorithm (PIDIND)	4-180

xvi Series 90-30/20/Micro Programmable Controllers Reference Manual–September 1998 GFK-0467K