DTR_314-01-01-001_EN_d
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5.
MINI extender
The extender module is a component of the display for weighing scales, which enables the communication with
peripheral devices.
5.1
Extender Connectors
det. A
– LAN (optional);
det. B
– RS-232;
det. C
– 0/20mA digital current loop;
det. D
– RS-485/RS-422
Fig. 5
5.2
List of extender connectors in the WA-1 MINI display for weighing scales
Table 2 presents an overview of the extender connectors in the WA-1 MINI display for weighing scales. These
connectors are available after removing the cover (Fig. 6)
det. A
– extender cover,
det. B
– cover fixing screws
Fig. 6
NOTICE!
The disassembly of the housing must be made with the disconnected power supply. When doing this, take special
caution because of the possibility of electric shock
Interface / Function
Connector
symbols
Notes
STA
N
D
RAD
5
RS-232
RA
RDX line of the RS-232 interface. The line should be connected
with the weighing terminal output.
RK
GND line of the RS-232 interface
0/20 mA (CL) digital
current loop
CA
CL line of the current loop. The line should be connected with
the weighing terminal TDX output
CK
GND line of the current loop interface
RS-485 RS-422
A
RS-485 and RS-422 interface non-inverting line
B
RS-485 and RS-422 interface inverting line
GND
GND line of the RS-485 and RS-232 interface for use at risk of a
significant difference in the potentials of the display mass and
the weighing terminal mass
Table 2
5.2.1
RS-232 connector:
For configuration purposes, the user connects with the display for weighing scales via the RS-232 connector (Fig. 5),
using the computer with the RGB WagSet 2 software installed.
5.2.2
RS-485 / RS-422 connector:
For configuration purposes, the user connects with the display for weighing scales via the RS-485 or RS-422 connector
(Fig. 5), using the computer with the RGB WagSet 2 software installed.
5.2.3
0/20mA digital current loop:
For communication purposes, the user connects with the display for weighing scales via the digital current loop
connector (Fig. 5), using the computer with the RGB WagSet 2 software installed.
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on the Extender PCB there are located all connectors available as standard (RS-232, RS-485, RS-422), 0/ 20mA (CL) digital current loop,
however, only the RS-232 interface cable (without a tip) is led out.
