Chapter 2 Installation 20
The power supply and the I/O supply should share the same power source. Only short circuit the first and the last
module.
When I/O link, the net can connect 8 products in max. (ID: 0-7).
When Remote I/O is available, it only can connect 2 products max (Master & Slaver).
※ More information about RS485 Model communication to see “Chapter 7 20 Points RS485 type Models
Instruction”.
①-1A quick-blowing fuse, circuit-breaker or circuit protector
②-Surge absorber (43V DC)
③-Surge absorber (Input 24VAC:43V; Input 100~240VAC:430V AC)
④-Fuse, circuit-breaker or circuit protector
⑤-Inductive load
⑥-Comply with standard: EIA RS-485.
K type Indicator Light
There is an indicator light to indicate the status of SG2 (K type) smart, and the below table shows the
relationship between the light and the SG2 status.
State of light Description
Power up, SG2 is stopping
Flicker slow(1Hz), SG2 is running
Flicker quick(5Hz), SG2 is under failure status
—Flash error
—Illogicality in user program
—Expansion model error
—RTC error
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