Connecting Of Digital Outputs And Digital Inputs - Siemens MicroSAM Operating Instructions Manual

4.4.11

Connecting of digital outputs and digital inputs

The following table is valid for devices from release version 4 onwards.
Core color Description
White/gray Digital input 1+
Gray/brown Digital input 2+
White/red Digital input 3+ or
SSSI* SCL-Rx
Brown/red Digital input 4+ or
SSSI* SDA-Rx
Brown/blue Digital output 1+
White/blue Digital output 2+
White/pink Digital output 3+ or
SSSI* SCL-Tx
Pink/brown Digital output 4+ or
SSSI* SDA-Tx
* The SSSI signals from devices are available with release version 10. The signals are used,
for example, to connect an IO extender (order no. A5E01494354). Refer to the
documentation of the IO extender for more on this. If SSSI is not used, the lines are available
for their original function as digital inputs and outputs.
The following table is valid for devices up to and including release version 3.
Core color Description
White/gray Digital output 1+
Gray/brown Digital output 1-
White/red Digital output 2+
Brown/red Digital output 2-
Brown/blue Digital input 1+
White/blue Digital input 1-
White/pink Digital input 2+
Pink/brown Digital input 2-
Arc-suppression diode with inductive loads
If you connect inductive loads (e.g. valves) for digital outputs, you must connect the arc-
suppression diodes in parallel.
Type of cable
Siemens AG recommends twisted-pair cables, 0.14 mm
MicroSAM
Operating Instructions, 06/2012, C79000-G5376-C560-07
Usage
Sample flow,
24 V DC = OK,
0 V = too low
Application programmable
Application programmable
Application programmable
Application programmable
Application programmable
Application programmable
Application programmable
Usage
Sample flow,
24 V DC = OK,
0 V = too low
4.4 Mounting and connecting
Comment
24 V DC to optocoupler
Second connection to
+24 V DC
Relay contact
0.5 A / 100 V / 10 W
Second connection to
+24 V DC
Comment
Relay contact
0.5 A / 100 V / 10 W
24 V DC to optocoupler
(AWG 26).
2
Mounting
Circuit diagram
65