Siemens S5-135U/155U appendix Example of connection designation for an input

Digital Input/Output Modules

Connection of						Front Strip
Process Signal
Lines						LED Pin
		F+
L+					1
L±		F±			2
L+		L+		4)	3
			1I0.0		4	g
			1I0.1		5	g
			1I0.2		6	g
			1I0.3		7	g
			1I0.4		8	g
			1I0.5		9	g
			1I0.6		10	g
			1I0.7		11	g
					12
			1I1.0			g
					13
			1I1.1
					14	g
			1I1.2
					15	g
			1I1.3
					16	g
			1I1.4
					17	g
			1I1.5
					18	g
			1I1.6
					19	g
			1I1.7
					20
						g
					21
L±
					22
					23
					24
			1I2.0			g
					25
			1I2.1
					26	g
			1I2.2
					27	g
			1I2.3
					28	g
			1I2.4
					29	g
			1I2.5
					30	g
			1I2.6
					31	g
			1I2.7
					32	g
					33
			1I3.0			g
					34
			1I3.1
					35	g
			1I3.2
					36	g
			1I3.3
					37	g
			1I3.4
					38	g
			1I3.5
					39	g
			1I3.6
					40	g
			1I3.7
					41	g
L±
	3)				42

Block Diagram of Module Inputs

	t
	t	L+
	t
2)	t
	t
2)	L±
2)
2)	t
	t
2)
	t
	t	Isolation
	L±	Shield

Example of connection designation for an input:

x20

1) (1) I 3.5

Input 5 (5th bit); 0 to 7 possible

Address of input byte (3rd byte);

0 to 255 possible

I = Input

1st group (not specified in the address)

Data Memory and S5 Bus Control

g	=	Green LED (status indicator)
F+/F-	=	Enable input

1)Changeover of enable mode with jumper X20: Jumper inserted = Enable input active (factory setting) Jumper open = Enable input inactive.

2)The terminal is not connected internally. Even when this terminal is connected to input voltages, the clearances in air and leakage paths remain adequate to UL, CSA and VDE.

3)By connecting L- to pin 42, a leading and trailing connection to ground is established on the module when it is plugged in and removed.

4)L+ to terminal 3 is not required for -4UA14.

System Manual	8-33
C79000-G8576-C199-06