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6-2. Current Loop Interface
“Current Loop” Interface is stronger for Electric Noise than “RS-232C” interface.
So, it can be used for long distance communication.(About 100m long distance).
※
Current Loop Interface supports, up to 9,600 Communication Speed, only.
6-2-1. Signal Format
As same as “RS-232C” Interface
1 20mA
0 0mA
※
Only this power part is different.
6-2-2. Data Format
As same as “RS-232C” Interface
6-2-3. Communication with Other Devices (Remote Display / External Display)
6-2-4. Current Loop Circuit
SI 4300
3 : RxD TxD : 8
4 : RxD TxD : 9
Remote Display
(External Display)