Installation
4.3 Installation and removal procedures
S7-1200 Programmable controller
System Manual, V4.2, 09/2016, A5E02486680-AK
63
Installing and removing an SB, CB, or BB
Table 4- 4 Installing an SB, CB, or BB 1297
1. Ensure that the CPU and all S7-1200 equipment are disconnect-
ed 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 straight 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.
Table 4- 5 Removing an SB, CB or BB 1297
1. Ensure that the CPU and all S7-1200 equipment are disconnect-
ed from electrical power.
2. Remove the top and bottom terminal block covers from the CPU.
3. Remove the signal board connector (if installed) by gently disen-
gaging with a screwdriver.
4. Place a screwdriver into the slot on top of the module.
5. Gently pry the module up to disengage it from the CPU.
6. Without using a screwdriver, remove the module straight up from
its mounting position in the top of the CPU.
7. Replace the cover onto the CPU.
8. Replace the terminal block covers.
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