Rockwell Automation 1771-DB BASIC MODULE - Manual (Page 28)

Chapter
Installing the BASIC Module 1
1 -4
Set Watchdog Timer Enable Jumper (JW1)
Use JW1 to enable the watchdog timer. Unless you are using assembly
language code that you programmed for your Series A module, you should
enable this jumper.
To: Set jumper : ✔ your selection:
enable the watchdog timer
factory
setting
disable the watchdog timer
Set Memory Module Configuration Jumper (JW2)
Use JW2 to configure your non-volatile memory. Jumper JW2 redirects
the BASIC module circuitry for the different memory modules. If you are
not using a memory module, this jumper is not applicable. The BASIC
module runs properly with the jumper in either position.
If you have this PROM : Set jumper: ✔ your selection:
8K EEPROM
32K EEPROM
8K EPROM
32K EPROM
Refer to Chapter 3 for more information on memory modules.
ATTENTION: Other jumper settings for JW2 are invalid and
may cause damage to the BASIC module.
Chapter