Connecting Peripheral Units - Siemens SIMATIC Rack PC 840 Manual

Setting Up and Operating the SIMATIC Rack PC 840
3.4

Connecting Peripheral Units

Notice
When connecting peripheral units, ensure that the components have industrial
capability according to EN 50082-2.
Connecting the Printer to the Parallel Port
Proceed as follows to connect your printer:
1. Separate the Rack PC from the mains and switch off the printer.
2. Plug the printer cable into the LPT1 parallel port.
3. Connect the printer cable to the printer.
4. Screw the connector tight at the interface port.
Figure 3-4 Position of the Printer Ports
Caution
Switch the unit off before connecting the parallel printer to the LPT 1 port (the
printer should also be switched off).
Make sure that you use the correct port. If you use the wrong port or wrong
connecting cables, the port may be damaged.
Before plugging in the cables, the electrostatic charge of your body, the unit, and
the cables must be equalized. To do this, touch the mounting plate for the ports on
the left-hand side of the unit. Only use original connecting cables.
Connecting the Printer to a Serial COM Port
You can also connect your printer to the Rack PC using a serial COM port. You will
find information on how to adapt and set your port and which connecting cable you
require in the description of your printer.
3-8
COM 1 COM 2
socket (serial) socket (serial)
LPT 1
socket (parallel)
SIMATIC Rack PC 840 Manual
A5E00104826-03