Wiring
6.8 Front connector for the I/O modules
S7-1500 Automation System
System Manual, 01/2013, A5E03461182-01
65
● In the delivery state a coding element is located in the module. When the front connector
is first inserted into the I/O module, a part of the coding element clips onto the front
connector. If the front connector is removed from the I/O module, one half of the coding
element remains in the front connector, and the other part of the coding element remains
in the I/O module. The insertion of a front connector that is not suited to the module is
thereby mechanically prevented. This ensures, for example, that the front connector with
the coding element of a digital module cannot be inserted into an analog module.
Further information about the coding element is also available in the chapterCoding
element at the I/O module
and at the front connector (Page 116
).
Reference
Further information on the use of the potential bridges can be found in the manual for the
respective I/O module.
6.8.2 Wiring front connectors for I/O modules without shield contact element
Requirements
● The supply voltages are turned off.
● The wires are prepared according to the utilized clamping technology, take the wiring
rules (Pag
e 59) into account for this purpose.
Tools required
3 to 3.5 mm screwdriver
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