OPTO 22 G4LC32ISA-LT, Руководство пользователя

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3-2 G4LC32ISA-LT User’s Guide
SETTING CONFIGURATION JUMPERS
The G4LC32ISA-LT includes jumpers that allow you to configure the G4LC32ISA-LT based on your
individual application requirements. This section describes these configuration jumpers.
Refer to Figure 3-1 for the location of the G4LC32ISA-LT jumpers. Table 3-1 describes the use and
default settings of most jumpers. “In” means a jumper is installed and “out” means a jumper is
not
installed.
Each jumper is described in detail below.
EEPROM/RAM Jumper (E/R)
Use this jumper to choose the source of the G4LC32ISA-LT’s control program. When the jumper is in
(the default), the control program will run from RAM; when the jumper is out, the control program is
copied from flash EEPROM into RAM and run from RAM.
Normally, application programs are downloaded from your PC workstation to battery-backed CMOS
RAM in the G4LC32ISA-LT. The programs are then executed from RAM. Unless application programs
are stored in flash EEPROM, the E/R jumper should be installed to allow the control program in RAM
to run.
Autoboot Jumper (AUTO)
Use this jumper to determine whether autoboot mode will be enabled (jumper in) or disabled (jumper
out, the default).
When autoboot mode is enabled, at power-up the G4LC32ISA-LT automatically executes the resident
user program (RAM or flash). Otherwise, it waits to receive a command from the host computer or
from OptoControl to run the resident program.
Protocol Select Jumper (X0)
Use this jumper to select whether communication between the host computer and the controller will
be in binary mode (jumper in, the default) or ASCII mode (jumper out).
Boot Loader Jumper (X1)
Use this jumper to set the controller to either boot to the downloaded kernel (jumper in, the default)
or boot to the kernel loader (jumper out). This jumper should always remain in place for normal
operations. For more information, see Appendix
A, Troubleshooting.
Host Port Jumpers (H0)
Use this jumper to determine the primary host port used by the G4LC32ISA-LT upon power up or
reset. Select from the ISA bus (jumper in, the default), or COM0 (jumper out).
Baud Rate Jumpers (BR0–BR3)
Use these jumpers to set the baud rate for COM0 on Power up or reset. Select the appropriate
INSTALLATION AND SETUP