Siemens S7-300 Technical data of the integrated I/O, Arrangement and usage of integrated I/Os

Technical data of CPU 31xC

6.6 Technical data of the integrated I/O

6.6Technical data of the integrated I/O

6.6.1Arrangement and usage of integrated I/Os

Introduction

Integrated I/Os of CPUs 31xC can be used for technological functions or as standard I/O. The figures below illustrate possible usage of I/Os integrated in the CPUs.

Reference

Further information on integrated I/O is found in the Manual Technical Functions.

CPU 312C: Pin-out of the integrated DI/DO (connector X11)

Standard Interrupt		Count		X11
	input		1
DI	X	Z0 (A)	2	DI+0.0
DI	X	Z0 (B)	3	DI+0.1
DI	X	Z0 (HW gate)	4	DI+0.2
DI	X	Z1 (A)	5	DI+0.3
DI	X	Z1 (B)	6	DI+0.4
DI	X	Z1 (HW gate)	7	DI+0.5
			8
DI	X	Latch 0		DI+0.6
DI	X	Latch 1	9	DI+0.7
DI	X		10	DI+1.0
DI	X		11	DI+1.1
			12	2 M
			13	1L+
DO		V0	14	DO+0.0
DO		V1	15	DO+0.1
DO			16	DO+0.2
DO			17	DO+0.3
DO			18	DO+0.4
DO			19	DO+0.5
			20	1 M
Zn	Counter n
A, B	Encoder signals
Vn	Comparator n

XPin usable if not assigned to technology functions HW gate Gate control

Latch Store counter distance

6-28	CPU 31xC and CPU 31x, Technical data
	Manual, Edition 08/2004, A5E00105475-05