7-6 7. KOYO ELECTRONICS
SZ-4
Universal Communication Port (PORT2)
System parameter setting
Set the station number, parity and data type using the system parameter setting of the programmer. For more information,
refer to the PLC manual issued by the manufacturer.
(Underlined setting: default)
The following settings are fixed; data length: 8 bits, and stop bit: 1 bit.
Parameter setting register
Set the baud rate at special register “R7632”.
(Underlined setting: default)
SZ-4M
Universal Communication Port (PORT2)
Set special registers “R7655” and “R7656”, then specify “0500” (HEX) for the setting completion register “R7657”. When the set
value at R7657 is changed to “0A00” (HEX), it is regarded as normal; if it is changed to “0E00” (HEX), it is regarded as
erroneous.
Parameter setting register
(Underlined setting: default)
Item Setting Remarks
Parity Odd
/ None
Station number 1
to 90
Data type HEX
Register Setting
Setting
Example
R7632
0003H
19200 bps
Station No. 01 to 5A (HEX)
0000001: Station number 1
0000010: Station number 2
0000011: Station number 3
1011000: Station number 88
1011001: Station number 89
1011010: Station number 90
Bit 1514131211109876543210
Baud rate
100: 4800 bps
101: 9600 bps
110: 19200 bps
111: 38400 bps
Parity
00: No parity
10: Odd parity
11: Even parity
Data type
0: HEX
Stop bit
0: 1 bit
1: 2 bits