PPA5xx/15xx user manual
5-10
Setting the LAN IP manually will disable the DHCP and the
unit will use a fixed IP address, defined by the IP Address
setting in the REMOTE menu.
RS232 data format is: start bit, 8 data bits (no parity), 1
stop bit. Flow control is RTS/CTS (see section 5.2), baud
rate is selectable via the REMOTE menu.
A summary of the available commands is given in the
Appendix. Details of each command are given in the
communications manual.
Commands are executed in sequence except for two
special characters that are immediately obeyed:
Control T (20) – reset interface (device clear)
Control U (21) – warm restart
The GPIB option uses a GPIB515 to make a GPIB link
available to the PPA500 and PPA1500 range of
instruments.
This is achieved through a serial link to the PPA that
handles all necessary status lines and registers for
IEEE488 communication.
To use the GPIB515:
- Connect the provided 8 pin mini-DIN cable between the
PPA and GPIB515.
- If the PPA is powered-up, the GPIB515 will receive its
power supply through the DIN cable. To confirm this,
check that the right LED is illuminated.
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