Remote Operation 11-27
Message exchange protocol
Two rules summarize the message exchange protocol:
Rule 1. Always tell the Model 2182 what to send to the computer.
The following two steps must always be performed to send information from the
instrument to the computer:
1. Send the appropriate query command(s) in a program message.
2. Address the Model 2182 to talk.
Rule 2. The complete response message must be received by the computer before another
program message can be sent to the Model 2182.
RS-232 interface reference
Sending and receiving data
The RS-232 interface transfers data using eight data bits, one stop bit, and no parity. Make
sure the controller you connect to the Model 2182 also uses these settings.
You can break data transmissions by sending a ^C or ^X character string to the controller.
This clears any pending operation and discards any pending output.
Baud rate, flow control and terminator
NOTE The procedure to select and configure the RS-232 interface is provided in “Selecting
and configuring an interface” located at the beginning of this section.
Baud rate
The baud rate is the rate at which the Model 2182 and the programming terminal
communicate. Choose one of the following available rates:
• 19.2k
• 9600
• 4800
• 2400
• 1200
• 600
• 300
The factory selected baud rate is 9600.
Make sure that the programming terminal that you are connecting to the Model 2182 can
support the baud rate you selected. Both the Model 2182 and the other device must be configured
for the same baud rate. To select a baud rate, follow these steps:
To Next Page
Loading...
Need help?
General
