7-14 7. KOYO ELECTRONICS
Universal Communication Port 3
Set parameters into the special register “R776, 777”, then set “5AAA” (HEX) into the setting complete register “R767”. When
the set value at R767 is changed to “AAAA” (HEX), it is regarded as normal; if it is changed to “EAAA” (HEX), it is regarded as
erroneous.
Parameter setting register
Communication parameter settings can also be made by using the system parameter setting of the programmer. For more
information, refer to the PLC manual issued by the manufacturer.
SZ-4M
Universal Communication Port (PORT2)
Set parameters into the special register “R7655, 7656”, then set “0500” (HEX) into the setting complete 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)
Communication parameter settings can also be made by using the system parameter setting of the programmer. For more
information, refer to the PLC manual issued by the manufacturer.
Register Setting Setting Example
R776 Same as the setting register R772 for the universal port 1 00E0H
R777 Same as the setting register R773 for the universal port 1 8701H
Register Setting Setting Example
R7655 0020H
R7656
8701H
38400 bps
Odd parity
Stop bit 1
Station number 01
HEX denotation
Bit 151413121110 9 8 7 6 5 4 3 2 1 0
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
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