A&D GX Series, Instruction Manual

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15
4-2 Current Loop Output (GX-04/GX-06) Specifications
The specifications of the current loop interface are as follows:
Transmission system 20 mA current loop (Passive)
Transmission Asynchronous, uni-directional (Only from the balance)
Data format Baud rate: 600, 1200, 2400, 4800, 9600 bps
Data: 7 or 8 bits
Parity: Even, Odd (Data 7 bits)
None (Data 8 bits)
Stop bit: 1 bit
Code: ASCII
Data Current loop (20 mA)
1 20 mA
2 0 mA
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.
Circuit
Pin assignments
GX-04 GX-06
Pin No. Description Pin No. Description
1 HI 1 No connection
2 COM 2 Analog GND
3 Sending loop (Current loop) 3 Sending loop (Current loop)
4 LO 4 No connection
5 Sending loop (Current loop) 5 Sending loop (Current loop)
6 OK 6 No connection
7 No connection 7 Analog output