Excell 320S - Chapter 5 Interface; Serial Input;Output Interface (OP-01)

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Chapter 5 Interface
5-1 Serial Input / Output Interface (default OP-01)
 Pin location and setting
1. Built-in 1 set of RS-232 and 1 set of RS-485
 Use of Terminal Resistance
Set first serial port interface 03 rS1 Set second serial port interface 04 rS2
built-in RS485 built-in RS232
PIN
Function
9
RS-232 RX
10
RS-232 TX
11
SG
12
RS-485 D+
13
RS-485 D-
When the distance is long, add terminal
resistance at the end of the
transmission line (first unit and last unit)
to reduce signal distortion
10
1
5
4
3
2
9
8
7
6
13
12
11
Press key
Press key
Input desired
parameter code
Press key
Display show the existing
parameter code. Input a new
code as required
Continue to the next function setting or
press key to escape
Press key
Press key
Input desired
parameter code
Press key
Display show the existing
parameter code. Input a new
code as required
Continue to the next function setting or
press key to escape
J1 short to use terminal resistance