KERN CFS User Manual

76 CFS/CCS-BA-e-1220
15 Second balance interface
When using as counting system, the weighing bridge must be connected with a
suitable cable via the second-balance interface.
9 pin d-subminiature bushing of the
balance
Connection of weighing bridge KERN
KFP
Pin no.:
Balance connection
Pin 1 or 2
EXC+ (5V)
see labelling of load cell
Pin 4 or 5
EXC- (0)
Pin 7
SIG–
Pin 8
SIG+
16 RS 232C interface
The balance is typically equipped with a RS 232C interface. The weighing data can
be output depending on the setting in the menu either automatically or by pressing
(or in CFS 50K-3) via the interface.
This data exchange is asynchronous using ASCII - Code.
The following conditions must be met to provide successful communication
between the weighing balance and the printer.
Use a suitable cable to connect the weighing balance to the interface of the
printer. Faultless operation requires an adequate KERN interface cable.
Communication parameters (baud rate, bits and parity) of balance and
printer must match. Detailed description of the interface parameters see
chap. 13.2, Menu block " ".
16.1 Pin allocation of balance output bushing:
CFS 3K-5, CFS 6K0.1, CFS 15K0.2, CFS 30K0.5 models:
Pin 2: TXD - Output
Pin 3: RXD - Input
Pin 5: GND - Signal ground

KERN CFS Specifications

General

Plate material	stainless steel
Readability	0.01 g
Reproducibility	0.01g
Calibration	External calibration
Display	LCD
Weighing units	g, lb, oz
Operating temperature	10 °C - 40 °C
Functions	counting, weighing
Interface	RS-232