Cardinal 748 - Page 9

8
figure no. 11 - PC board layout
NOTE! After all terminations have been made, remove the excess cable from the
instrument enclosure and securely tighten each of the cable gland connectors. Do not
over-tighten these connectors but make certain they are snug. DO NOT USE TOOLS!
Tighten with fingers!
DATA FORMAT SPECIFICATIONS
SERIAL DATA FORMAT
The serial data formats are defined during the setup and review functions. At these times, the
number of start, data and stop bits along with the baud rate is selected for the serial interface. Baud
rates of 1200, 2400, 4800, 9600 and 19.2K baud are supported.
RECORD FORMAT
The information transmitted from the printer output port depends on the operation mode of the 748
at the time the PRINT key is pressed as well as the print format entered. Refer to the CALIBRATION
section of this manual for additional information on the programming of the printer output format.
Two general formats transmitted are shown in the illustration on.
GROSS WEIGHT MODE: NET WEIGHT MODE:
*^CR ID^nnnnnn *^CR ID^nnnnnn
*^CR hh:mm *^CR hh:mm
*^CR mm/dd/yyyy** *^CR mm/dd/yyyy**
*^CR xxxxxx^LB^G
*^CR xxxxxx^LB^T ^(Man Wt)
*^CR xxxxxx^LB^N
*Determined by tab settings
**Domestic - dd/mm/yyyy = international
where:
nnnnnn = six (6) digits of numeric identification with leading zeros suppressed
hh = hours (refer to Setup for information on 12 or 24 hour time format selection)
mm = minutes (two (2) digits)
ss = seconds (two (2) digits)
MM = month (two (2) digits) (refer to Setup for information on date format
selection)
dd = day (two (2) digits)
P1
LOAD CELL
-Excitation
-Sense
-Signal
Shield
+Excitation
+Sense
+Signal
J3
J1
J5
P11
J12 DOM/INT
Preset Weight
Comparator
Logic Level Output
P9
Printer
Output
Ground20Ma
RS232
Bi-Directional
Serial Interface
P7
P5
Connector for
Option PC Board
Display Outline
P3
Power Input
Connector
PWC 2
PWC 3
PWC 4
PWC 5
PWC 1
Common
PWC 8
PWC 7
PWC 6
Sense/Excitations
Jumpers J1 and J3
Auto-On
Jumper
Calibration
Switch
J5 VEXC SELECT
NORMAL CLOSED= 8V
OPTIONAL OPEN= 12v*
*(Must use 18 VDC power supply)
OPR
CAL
CTS