Siemens SIMATIC S5 Manual page 280

Before you switch on the plant, the carriages (or similar) must be within the limit switches
send
which signals to the IP247. If necessary, you must move the axes to within the
permitted range manually.
Check all the connecting cables and switch on the voltage sources in the following order:
Switch on the PC voltage
(after power up, the LEDs must flash alternately, following this the green LED must be
lit steadily, if this not the case, there is a hardware problem).
If applicable, switch on the 24 V
Switch on the power units
Connect the programmer to connector X8 and load the COM 247 communications
software (=> Part 5, "COM 247 Communications Software"). After switching to the online
mode, the SYSID with the firmware version must appear on the PG, otherwise there is a
module fault.
Release: IP247. . .
Enter the machine data on the module or transfer a complete data record from a prepared
diskette to the IP247 (=> Section 7.1.4 "Planning the Machine Data"). After the
transmission of a data record, the appropriate power unit automatically receives an
initialization pulse.
Switch the module to test mode (function key 3 on the PG) and select the required axis
Note
1). You must also make sure that you can switch off the motors at any time (emer-
gency stop or external limit switch accessible).
Planning
o
o k
o k
o k
o k
o k
o k
o
o k
ok
7 - 1 3