Siemens SIMATIC PANEL PC 877 - Manual (Page 127)

Maintenance and service
12.4 Installing and removing hardware components
SIMATIC Panel PC 877
Operating instructions, Release 07/2006, A5E00877780-01
12-13
12.4.4.2 Installing / removing expansion modules
Preparation
Disconnect the device from mains.
Installing expansion modules
How to install an expansion module (PCI / AT format):
1 Open the device.
2 Loosen the two fastening
screws (1) and remove the
module holding-down device
(2).
3 Remove the relevant steel slot
cover (3).
4 Insert the expansion module
(4) into the relevant slot.
5 Install the module holding-
down device and insert the
slider.
6 Secure the steel slot cover (3)
of the expansion module.
7 Close the device.