Installation And Commissioning; Installing The Hardware - Siemens SIMATIC S7-1200 Manual

4 Installation and Commissioning

Installation and Commissioning
4
The application example was set up using a CPU 1214C and a 1241 RS485
communication board. If you are using a different CPU, please follow the
instructions in chapter 4.3.1.
Instead of the CB 1241 RS485 communication board you can also use the CM
1241 RS422/485 communication module to communicate with the ebm-papst fan
(here: "VarioDrive C") (\3\).
4.1

Installing the hardware

The figure below shows the hardware setup of the application.
Figure 4-1
L1
N
PE
+24V
M
L1 N PE L+ M
M L+
SIMATIC Panel
KTP900
Table 4-1
No.
1. Install all required S7-1200 components on a
top hat rail.
2. Wire and connect all required components as
described.
Pay special attention to the crossed
communication link between CB 1241 RS485
and fan (T/RA – RSB and T/RB – RSA).
Finally, connect the fan (here: "VarioDrive C")
3.
and the SIMATIC PM 1207 power supply to
the AC power system (230 V).
Controlling several fans (ebm-papst) via Modbus RTU
Entry ID: 109476801, V2.0,
L+ M PE
L+ M PE
SIMATIC S7 SIMATIC S7
PM 1207 CSM 1277
P1 P2 P3 PN
192.168.0.1
192.168.0.2
192.168.0.242
PN
PC / PG
Action
09/2018
SIMATIC S7
CPU 1214C
SIMATIC S7
CB 1241 RS485
L1 N
(1.1) (1.2)
Ebm-papst
VarioDrive C
RSA RSB
(3.1) (3.2)
Schirmung
See Table 2-1
See S7-1200 manual (\8\)
Chapter A "Technical Data"
instructions for ebm-papst motor (\11\)
PE L1 N PE
(1.1) (1.2)
Ebm-papst
VarioDrive C
GND RSA RSB GND
(3.3) (3.1) (3.2) (3.3)
Remarks
and operating
26