A&D AD-4408C Manuale delle Istruzioni Scaricare il pdf (Pagina 37)

Page 35 AD-4408C Weighing Indicator

9. Interface

9.1. Standard Serial Output

The standard serial output with 0 to 20 mA can be connected to a device such as an

A&D printer or remote display. The interface has no power source. Therefore, the

external devices to be connected must have a power source. The setting values of the

standard serial output are changed in the general functions Cl f01 to Cl f03.

Type 0 to 20 mA current loop

Data bits 7 bits

Start bit 1 bit

Parity 1 bit, even

Stop bit 1 bit

Baud rate 600, 2400 bps

Code ASCII

9.1.1. Connection

Fig.7 Standard serial output pin connection

Fig.8 Standard serial output internal circuit

NOTE: The standard serial output connection has no polarity.

When a shielded cable is used, connect the shield to the F.G. terminal.

Standard

serial out

Frame ground

C.L.

F.G.

8 9

Internal circuit

C.LOOP

output

terminal

No polarity

Standard

serial out

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A&D AD-4408C Manuale delle Istruzioni Pagina 37