PSI System Controls and Diagnostics
A500 User Manual
A500_UM_090115 Page 26 of 61
2) Connect direct to a host PC with a crossover cable. Power up the A500. At the end of the
POST you should see the IP address displayed as 192.168.100.100, and the unit will remain in
the boot state.
3) The unit is now in a special initialization state where it will respond to a message on
192.168.100.100. The host PC should be fixed at non-conflicting address in the same range, for
example 192.168.100.1.
4) Confirm that you can ping the A500 on address 192.168.100.100.
5) Using the Pyramid Technical Consultants, Inc. configuration utility program, or your own
software that can use the appropriate DLL function call, send the required setting for the first
three blocks of the IP address (the local network address) which will be stored in flash memory
on the A500.
6) Power down the A500 and set the three address switches to the required number for the last
block of the IP address (which must be in the range 001 to 255). The switches read from left
(MSD) to right (LSD).
7) Whenever the A500 boots up it will now take the IP address comprising 24 bits given by the
downloaded number followed by 8 bits given by the switch setting. The IP address is shown on
the A500 LCD during the Power-On-Self –Test (POST) during the boot sequence:
Testing Ethernet…
V3.2 192.168.100.127
A very common local network address range is 192.168.xxx.xxx., which is reserved to local
networks and not permitted on the general internet. So for example, you could download
192.168.2 for the first blocks corresponding to your local network, and then use the switches to
select one of 254 available addresses for the A500. If in doubt, you can confirm the IP address
has taken effect by sending the “ping” command from a console window on the PC.