Omron SYSMAC CS1W-SCB41-V1 Operation Manual page 310

Auxiliary Area and CIO Area Allocations (Modbus-RTU Slave Mode)
Words
Boards Units
(CS Series only) (CS/CJ Series)
Port 1 Port 2 Port 1
CIO CIO n + 5
1905 1915
CIO CIO n + 6
1906 1916
CIO CIO n + 7
1907 1917
CIO CIO n + 8
1908 1918
CIO CIO n + 9
1909 1919
CIO CIO n + 10
1910 1920
CIO CIO n + 11
1911 1921
CIO CIO n + 12
1912 1922
CIO CIO n + 13
1913 1923
CIO CIO n + 14
1914 1924
Bit
Port 2
n + 15 12 to 15 Port
setting
08 to 11
status
05 to 07
04
03
02
01
00
n + 16 15
14
13
02 to 12
01
00
n + 17 11 to 15 Commu-
nica-
10
tions
status
09
08
07 Trans-
mission
06
control
05
signal
status
04
03
00 to 02
n + 18 15 Trans-
mission
14 to 08
error sta-
07
tus
06 to 05
04
03
02
00, 01
n + 19 15 to 00 Number of normally received commands
n + 20 15 to 00 Number of normally sent responses
n + 21 15 to 00 Number of overrun errors, framing errors, and parity errors (transmission
errors)
n + 22 15 to 00 Number of CRC errors (transmission errors)
n + 23 15 to 00 Number of command format errors (illegal function codes and illegal
addresses)
n + 24 15 to 00 Reserved.
Contents
Setup Serial communications mode (A hex: fixed)
settings
Baud rate (Note 1)
Reserved
Start bits: Always 0
Data length: Always 1
Stop bits (Note 2)
Parity: Yes/No (Note 1)
Parity: Even/Odd (Note 1)
Hard- 0 No 0 RS-232C 1 RS-422A/485 1 Reserved
ware
0 1
settings
0: Terminating resistance OFF
1: Terminating resistance ON
Reserved
1: Setup error; 0: Setup normal
1: Port operating; 0: Port stopped
Reserved
1: Remote Unit busy receiving (Flow control)
0: Remote Unit ready to receive (Note 3)
Reserved
1: Local Unit busy receiving (Flow control)
0: Local Unit ready to receive (Note 4)
ER signal
DTR signal
Reserved
CTS signal
RTS signal
Reserved
1: Transmission error; 0: No transmission error
Note used.
1: CRC error, 0: Normal
Note used.
1: Overrun error; 0: Normal
1: Framing error; 0: Normal
1: Parity error; 0: Normal
Reserved
Section 9-3
0 1
281