Proface APL3000B - Node Box PC Uživatelský manuál stáhnout pdf (Strana 29)

PS-3650A/PS-3651A Series Hardware Manual

2-8

2.3 Interface Specifications

This section describes the specifications of each interface of the PS-A Series unit.

2.3.1 Serial Interfaces (COM1/COM2)

The PS-A unit side connector is a D-Sub 9 pin plug type.

Use #4-40 (UNC)

for connections.

 COM1

COM1 can be changed to RS-232C, RS-422 or RS-485. (The factory setting is RS-232C.) To change this

setting, open the PS-A unit's Fan Unit or Memory Slot Cover and set the DIP Switches on the circuit board to

the desired position.

• Do not connect any pins to [NC].

• Connect the FG terminal line to the shell.

• This PS-A unit's serial port is not isolated. When the host (PLC) unit is also not

isolated, and to reduce the risk of damaging the RS-232C/RS-422/RS-485 circuit,

be sure to connect the pin #5 SG (Signal Ground) terminal.

• FG and SG terminals are internally connected in the PS-A unit. When connecting

to another device, be sure not to create an SG shorting loop in your system.

SEE

2.4 DIP Switches (page 2-14)

• Make sure to turn off the power supply before using the DIP Switches. Adjusting

the DIP Switches while power is supplied may cause malfunction.

Arrangement

Pin No.

RS-232C

Signal Name Direction Description

1 CD Input Carrier Detect

2 RD(RXD) Input Receive Data

3 SD(TXD) Output Send Data

4 ER(DTR) Output Data Terminal Ready

5 GND(SG) - Signal Ground (SG)

6 DR(DSR) Input Data Set Ready

7 RS(RTS) Output Request to Send

8 CS(CTS) Input Send Possible

9CI(RI)/+5V

*1 To change pin #9's RI/+5V setting, open the PS-A unit's Fan Unit or Memory Slot Cover and

set the slide Switch to the desired position. Please refer to 2.4 DIP Switches (page 2-14)

Input/

Output

Called status display/+5V Output

(Switching available)

Shell FG -

Frame Ground (Common with

SG)

(PS-A side)

1 2 ... 24 25 26 27 28 29 30 31 32 33 34 ... 84 85

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