Installing And Removing An Sb Or A Cb - Siemens SIMATIC S7 System Manual

96BInstallation
3.3 Installation and removal procedures
3.3.3

Installing and removing an SB or a CB

Table 3- 4 Installing an SB or a CB
Task
Table 3- 5 Removing an SB or a CB
Task
46
Procedure
1. Ensure that the CPU and all S7-1200 equipment are disconnected
from electrical power.
2. Remove the top and bottom terminal block covers from the CPU.
3. Place a screwdriver into the slot on top of the CPU at the rear of the
cover.
4. Gently pry the cover up and remove it from the CPU.
5. Place the module straight down into its mounting position in the top
of the CPU.
6. Firmly press the module into position until it snaps into place.
7. Replace the terminal block covers.
Procedure
1. Ensure that the CPU and all S7-1200 equipment are disconnected
from electrical power.
2. Remove the top and bottom terminal block covers from the CPU.
3. Place a screwdriver into the slot on top of the module.
4. Gently pry the module up to disengage it from the CPU.
5. Remove the module straight up from its mounting position in the top
of the CPU.
6. Replace the cover onto the CPU.
7. Replace the terminal block covers.
S7-1200 Programmable controller
System Manual, 11/2011, A5E02486680-05