Product specifications

18
5-2. Current Loop Output (GX-04K/GX-06K) Specifications
The specifications of the current loop interface are as follows:
Transmission system : 20 mA current loop (Passive)
Transmission form : Asynchronous, uni-directional (Only from the balance)
Data format : Baud rate : 600, 1200, 2400, 4800, 9600, 19200 bps
Data bits : 7 or 8 bits
Parity : Even, Odd (Data bits 7 bits)
None (Data bits 8 bits)
Stop bit : 1 bit
Code : ASCII
One character format
Notes
To use current loop, an external power supply that
provides 20 mA, is required.
The maximum rated voltage of the current loop is 25 V.
When a baud rate of 4800 bps or higher is used,
communication may not be performed properly.
Circuit
Pin assignments
GX-04K GX-06K
Pin No. Description Pin No. Description
1 HI (comparator) 1 No connection
2 COM (comparator) 2 Analog GND (Analog output)
3 Sending loop (Current loop) 3 Sending loop (Current loop)
4 LO (comparator) 4 No connection
5 Sending loop (Current loop) 5 Sending loop (Current loop)
6 OK (comparator) 6 No connection
7 No connection 7 Analog output (Analog output)
Housing Shield Housing Shield
For details on the comparator of GX-04K, Refer to “4-2. Comparator (GX-04K) Specifications”.
For details on the analog output of GX-06K, Refer to “6-2. Analog Output (GX-06K) Specifications ”.
Start bit
Data bits
Parity bit
Stop bit
20m
A
0m
A
Current loop outpu
t
3 pin
5 pin
Sending loop
(Current loop)
Shield
Sending loop
(Current loop)