Allen-Bradley 1746-BAS, User Manual, Page: 19 / 84

Publication 1746-UM004A-US-P
Module and Development Software Overview 1-7
Module Programming Interface
Your module can be programmed using an ASCII terminal with ASCII terminal
emulation software. You can also use a personal computer with the BASIC
Development Software (catalog number 1747-PBASE). Use an ASCII terminal to
enter a BASIC program one line at a time to the module. Use a personal computer
with the BASIC Development Software to create a BASIC program that is then
downloaded to your module. Typical programming interface configurations
include:
•
ASCII terminal interface – Figure 1.4
•
BASIC Development Software interface (RS-232) – Figure 1.5
•
BASIC Development Software interface (DH485) – Figure 1.6
ASCII Terminal Interface
Use an ASCII terminal to enter a BASIC program one line at a time to your
module through port PRT1. The ASCII terminal connected to the module must
be an industrial terminal, workstation, or personal computer (without the BASIC
Development Software) that communicates in alphanumeric mode. An ASCII
terminal can also be used to display charts or graphs generated by the BASIC
program. Figure 1.4 shows a typical ASCII terminal interface.
Figure 1.4 Module ASCII Terminal Interface
In this configuration, the RS232 port on the back of your industrial terminal or
personal computer is connected to port PRT1 on your module. Port PRT1 must be
configured as the program port. See chapter 3 for additional information on port
configuration.
ASCII Terminal or Personal
Computer Running ASCII
Terminal Emulation Software
Null Modem
Cable
SLC 500 Controller with BASIC or BASIC-T
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