GE 90-30/20/Micro manual Series 90-30,90-20, and Micro I/O System, PLC I/O System

2

Section 6: Series 90-30,90-20, and Micro I/O System

The PLC I/O system provides the interface between the Series 90-30 PLC and user-supplied devices and equipment. Series 90-30 I/O is called Model 30 I/O. Model 30 I/O modules plug directly into slots in the CPU baseplate or into slots in any of the expansion baseplates for the Series 90-30 PLC Model 331 or higher. Model 331, 340, and 341 I/O systems support up to 49 Model 30 I/O modules (5 racks). Model 351 and 352 I/O systems support up to 79 Model 30 I/O modules (8 racks). The Series 90-30 PLC Model 311 or Model 313 5-slot baseplate supports up to 5 Model 30 I/O modules; the Model 323 10-slot baseplate supports up to 10 Model 30 I/O modules.

The I/O structure for the Series 90-30 PLC is shown in the following figure.

PLC I/O System

APPLICATION	CACHE	a43072
RAM	MEMORY
% AI	% I
% AQ
	% T
% R
	% G
	% S

I/O CONFIGURATION		I/O	% Q
	DATA	SCANNER	% M
	16 BITS		1 BIT

SERIES 90-30

BACKPLANE

	MODEL 30	MODEL 30	MODEL 30				SERIES
					90-30
	DISCRETE	DISCRETE	ANALOG
							GENIUS
	INPUT	OUTPUT		I/O
						COMMUNICATIONS
	MODULE	MODULE	MODULE
							MODULE
GENIUS
	BUS

SERIES

FIVE

GBC

SERIES

FIVE

CPU

SERIES

SIX

GBC

SERIES

SIX

CPU

SERIES 90-70

GBC

SERIES 90-70

CPU

GLOBAL GENIUS

SERIES 90-30

CPU

Figure 2-7. Series 90-30 I/O Structure

Note

The drawing shown above is specific to the 90-30 I/O structure. Intelligent and option modules are not part of the I/O scan; they use the System Communication Window. For information about the 90-20 I/O structure, refer to the Series

90™ -20 Programmable Controller User’s Manual (GFK-0551). For information about the Micro PLC I/O structure, refer to the Series 90™ Micro PLC User’s Manual (GFK-1065).

2-38 Series 90-30/20/Micro Programmable Controllers Reference Manual– September 1998 GFK-0467K