38
420 Plus Installation Manual
5.2
Saving and Transferring Data
Connecting a personal computer to the
420 Plus
EDP
port allows you to save indicator configuration data to
the PC or to download configuration data from the PC
to an indicator. The following sections describe the
procedures for these save and transfer operations.
5.2.1
Saving Indicator Data to a Personal Computer
Configuration data can be saved to a personal
computer connected to the EDP port. The PC must be
r u n n i n g a c o m m u n i c a t i o n s p r o g r a m s u c h a s
PROCOMMPLUS
®
. See Section 2.3.5 on page 9 for
information about serial communications wiring and
EDP port pin assignments.
When configuring the indicator, ensure that the values
set for the BAUD and BITS parameters on the
SERIAL menu match the baud rate, bits, and parity
settings configured for the serial port on the PC. Set
the PRNDEST parameter to EDP.
To save all configuration data, place the indicator in
setup mode and send the DUMPALL EDP command
to the indicator. The
420 Plus
responds by sending all
c o n f i g u r a t i o n p a r a m e t e r s t o t h e P C a s
ASCII-formatted text.
5.2.2
Downloading Configuration Data from PC to
Indicator
Configuration data saved on a PC or floppy disk can
be downloaded from the PC to an indicator. This
procedure is useful when a number of indicators with
similar configurations are set up or when an indicator
is replaced.
To download configuration data, connect the PC to the
EDP port as described in Section 5.2.1. Place the
i n d i c a t o r i n s e t u p m o d e a n d u s e t h e P C
c o m m u n i c a t i o n s s o f t w a r e t o s e n d t h e s a v e d
configuration data to the indicator. When transfer is
complete, calibrate the indicator as described in
Section 4.0.
Calibration settings are included in the
configuration data downloaded to the
indicator. If the receiving indicator is a direct
replacement for another
420 Plus
and the
attached scale is not changed, recalibration is not
required.
When downloading configurations that include changed
serial communications settings, edit the data file to place
the serial communications changes at the end of the file.
Communication between the PC and indicator will be lost
once the indicator receives settings for baud rate (BAUD
parameter) or data bits and parity (BITS parameter) that
do not match those configured for the PC.
Note
