Layout
1. Input Ports
Input ports are interfaced with a 5mm spaced terminal block which has 8 terminals. Every output port is isolated by photocoupler and supports wet contact, dry contact, NPN transistor and PNP transistor input.
Circuit Diagram of Input Port
WET contact
Voltage conditions in wet contact is as follows:
| division | condition |
|---|---|
| maximum DC input | DC 30V |
| ON | more than DC 3V |
| OFF | less than DC 1.5V |
Refer to the following figure for connection with your device.
Dry contact
An input port is ON under being short circuit between the port and DI.G port in this type. It means additional power should be supplied between DI.V and DI.G. Refer to the following figure for connection with your device.
NPN Transistor Connection
Refer to the following figure for connection with an NPN transistor.
PNP Transistor Connection
Refer to the following figure for connection with a PNP transistor.
2. Slave ID Switch
The slave ID is used when PHPoC board, which is called master, identifies each smart expansion board. Each smart expansion board, which is connected to one PHPoC board, should have a unique slave ID. The slave ID can be set one of the numbers from 1 to 14 by 4 DIP switches as follows:
3. LED
PES-2402 has 6 on-board LEDs.
| LED | Description |
|---|---|
| PWR | turned ON with stable power supply |
| STS | setting a valid slave ID > repeat On/Off in every second setting an invalid slave ID > blinks fast without communication with PHPoC > Off |
| 0 | turned ON with detecting input 0 is ON |
| 1 | turned ON with detecting input 1 is ON |
| 2 | turned ON with detecting input 2 is ON |
| 3 | turned ON with detecting input 3 is ON |