Siemens S7-1200 PROFIBUS - Page 22

Installation, connecting up, commissioning
3.3 Installing, connecting and commissioning
SIMATIC CM 1242-5
22 Operating Instructions, 01/2023, C79000-G8976-C245-06
Dimensions for installation
Figure 3-1 Dimensions for installation of the S7-1200
Table 3- 1 Dimensions for installation
S7-1200 devices
Width A
Width B *
CPU
CPU 1211C, CPU 1212C
90 mm
45 mm
CPU 1214C
110 mm
55 mm
Signal modules
8 or 16 digital I/Os
2, 4 or 8 analog I/Os
Thermocouple, 4 or 8 I/Os
RTD, 4 I/Os
45 mm
22.5 mm
16 analog I/Os
RTD, 8 I/Os
70 mm
35 mm
Communications
interfaces
CM 1241 RS-232 and CM 1241 RS-485
30 mm
15 mm
CM 1243-5 (PROFIBUS master)
CM 1242-5 (PROFIBUS slave)
30 mm 15 mm
CP 1242-7 (GPRS CP)
30 mm
15 mm
* Width B: The distance between the edge of the housing and the center of the hole in the DIN rail mounting clip
DIN rail mounting clips
All CPUs, SMs, CMs and CPs can be installed on the DIN rail in the cabinet. Use the pull-out
DIN rail mounting clips to secure the device to the rail. These mounting clips also lock into
place when they are extended to allow the device to be installed in a switching panel. The
inner dimension of the hole for the DIN rail mounting clips is 4.3 mm.