Rockwell Automation 1771-DB Basic Module User Manual - Series A - Manual (Page 98)

Operating Functions
Chapter 5
5–61
Important: Maximum baud rate is 2400 bps for all data recorder CALL
routines. The Peripheral Port is set up in these routines and does not need
setting in BASIC.
This routine saves the current RAM program on a 1770–SA/SB recorder.
The program in RAM is not modified. The message ERROR—IN ROM
displays if ROM is selected instead of RAM.
To use this routine:
insert the cassette/cartridge into the recorder and rewind.
enter CALL 32. The terminal responds with “POSITION TAPE AND
PRESS WRITE/RECORD ON TAPE”.
Press RECORD. The module begins sending data to the recorder. An
asterisk is displayed on the terminal as each program line is sent to the
recorder.
During this time the “DATA IN” LED on the data recorder and the XMIT
LED on the front of the module illuminate. When the last line of program
is sent to the recorder, a final asterisk is displayed on the terminal
indicating that the save operation is complete. Finally, tape motion ceases
and the BASIC prompt (
u) is displayed.
Press STOP if you are using a 1770–SA Recorder.
Important: If there is no program in RAM, the module displays the
message ERROR–NO BASIC PROGRAM EXISTS.
Important: Maximum baud rate is 2400 bps for all data recorder CALL
routines. The Peripheral Port is set up in these routines and does not need
setting in BASIC. See section 4.2.2.2 for required cable connections.
This routine is used to verify the current RAM program with a previously
stored program on the data recorder. To use this routine:
insert the cassette cartridge into the recorder and rewind.
enter CALL 33. The terminal responds with “POSITION TAPE AND
PRESS READ FROM TAPE”.
5.8.3
Save Program to Data
Recorder – CALL 32
5.8.4
Verify Program with Data
Recorder – CALL 33