Siemens SIMATIC S7-1200

Device configuration
6.3 Adding modules to the configuration
S7-1200 Programmable controller
158 System Manual, V4.2, 09/2016, A5E02486680-AK
6.3
Adding modules to the configuration
Use the hardware catalog to add modules to the CPU:
● Signal module (SM) provides additional digital or analog I/O points. These modules are
connected to the right side of the CPU.
● Signal board (SB) provides just a few additional I/O points for the CPU. The SB is
installed on the front of the CPU.
● Battery Board 1297 (BB) provides long-term backup of the realtime clock. The BB is
installed on the front of the CPU.
● Communication board (CB) provides an additional communication port (such as RS485).
The CB is installed on the front of the CPU.
● Communication module (CM) and communication processor (CP) provide an additional
communication port, such as for PROFIBUS or GPRS. These modules are connected to
the left side of the CPU.
To insert a module into the device configuration, select the module in the hardware catalog
and either double-click or drag the module to the highlighted slot. You must add the modules
to the device configuration and download the hardware configuration to the CPU for the
modules to be functional.
Table 6- 1 Adding a module to the device configuration
Module
Select the module
Insert the module
Result
SM
SB, BB
or CB
CM or
CP