Siemens S7-I/O Operator's Manual page 16

4
Wiring the Device
Top: Outputs
1M 1L+ 0.0 0.1 0.2 0.3 0.4 2M 2L+ 0.5 0.6 0.7 1.0 1.1
Base
Module
1M 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 2M 1.0 1.1 1.2 1.3 1.4 1.5
Bottom: Inputs
+
Figure 4.5 DC Base Module (DC Power Supply, DC inputs, DC Outputs)
N(-)
L(+)
Top: Outputs
1L 0.0 0.1 0.2 0.3
Base
Module
1M 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 2M 1.0 1.1 1.2 1.3 1.4 1.5
Bottom: Inputs
+
Figure 4.6 AC Base Module (AC Power Supply, DC Inputs, Relay Outputs)
14
Loads Outputs (20.4–28.8 VDC)
+
Contacts Inputs (15–35 VDC)
Loads Outputs (30 VDC/250 VAC)
N(-)
L(+)
• 2L 0.4 0.5 0.6
Contacts Inputs (15–35 VDC)
+
470 Ω
3.3 KΩ
+
N(-)
L(+)
• 3L 0.7 1.0 1.1 Gnd N
470 Ω
3.3 KΩ
+
24 VDC External
Power Supply
+
• Gnd M L+
Note:
1. Actual component values
may vary.
2. Each ground connection
is optional.
24 VDC
+
M L+
24 VDC Power for
Input Sensors or
Expansion Modules
(280 mA)
AC External
Power Supply
(120 or 240 VAC)
L1
Note:
1. Actual component values
may vary.
2. Each ground connection
is optional.
3. Connect AC line to the L
terminal.
+
24 VDC
M L+
24 VDC Power for
Input Sensors or
Expansion Modules
(280 mA)
Siemens Energy & Automation, Inc.