Extron electronic 3000B - Manual (Page 61)

Exatron 3000B
www.exatron.com 3-19 Chapter 3 Interface Info
R
EMOTE
RAM C
OMMANDS
:
“A” command = Request ROM/RAM address setting.
To check a single address setting in both the
handler’s ROM and RAM, send “A90 [CR]”.
A for address, 90 to FF for a given address.
The handler will send back:
90 ROM 01 RAM 01 [CR]
This displays the current address location
selected, the ROM default setting, and the
current RAM setting.
“P” command = Pause Handler
First, send a + (plus) to the handler; wait for the
handler to return a + (plus.) The handler is now
ready to receive a command.
Send “P [CR]” to the handler. The handler will
complete its current sub-cycle and will PAUSE the handler as soon as
possible. The display will read: HANDLER PAUSED.
To restart the handler, press the RUN button on
the handler’s control panel.
Exatron RS-232:
The Exatron RS-232 interface allows the handler to be interfaced to virtually any computer-based piece of
test equipment. The user must write a program which communicates with the handler using the
commands listed in this section. This interface is unlike E
XATRON ' S other control interfaces.
The connector on the handler is a 25 pin RS-232-type “D” connector with female pins. The mating
connector on the interface cable must use male pins. The RS-232 side panel port uses the following pins:
Pin 1 = GROUND
Pin 2 = RECEIVE ; input to handler
Pin 3 = SEND ; output from handler
Pin 7 = GROUND
The baud rate, stop bits, data bits, and parity may be selected by setting an address (RAM address 009B
= baud rate, 009C = data format) in the handler's EPROM. Please refer to the General Interface Firmware
Address section at the beginning of this chapter for Baud Rate and Data Format settings. The standard
E
XATRON RS-232 settings are: 9600 Baud, No Parity, 8 Data Bits, 1 Stop.