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281
Auxiliary Area and CIO Area Allocations (Modbus-RTU Slave Mode)
Section 9-3
CIO
1905
CIO
1915
n + 5
n + 15
12 to 15
Port
setting
status
Setup
settings
Serial communications mode (A hex: fixed)
08 to 11
Baud rate (Note 1)
05 to 07
Reserved
04
Start bits: Always 0
03
Data length: Always 1
02
Stop bits (Note 2)
01
Parity: Yes/No (Note 1)
00
Parity: Even/Odd (Note 1)
CIO
1906
CIO
1916
n + 6
n + 16
15
Hard-
ware
settings
0 No 0 RS-232C 1 RS-422A/485 1 Reserved
14
0
1
0
1
13
0: Terminating resistance OFF
1: Terminating resistance ON
02 to 12
Reserved
01
1: Setup error; 0: Setup normal
00
1: Port operating; 0: Port stopped
CIO
1907
CIO
1917
n + 7
n + 17
11 to 15
Commu-
nica-
tions
status
Reserved
10
1: Remote Unit busy receiving (Flow control)
0: Remote Unit ready to receive (Note 3)
09
Reserved
08
1: Local Unit busy receiving (Flow control)
0: Local Unit ready to receive (Note 4)
07
Trans-
mission
control
signal
status
ER signal
06
DTR signal
05
Reserved
04
CTS signal
03
RTS signal
00 to 02
Reserved
CIO
1908
CIO
1918
n + 8
n + 18
15
Trans-
mission
error sta-
tus
1: Transmission error; 0: No transmission error
14 to 08
Note used.
07
1: CRC error, 0: Normal
06 to 05
Note used.
04
1: Overrun error; 0: Normal
03
1: Framing error; 0: Normal
02
1: Parity error; 0: Normal
00, 01
Reserved
CIO
1909
CIO
1919
n + 9
n + 19
15 to 00
Number of normally received commands
CIO
1910
CIO
1920
n + 10
n + 20
15 to 00
Number of normally sent responses
CIO
1911
CIO
1921
n + 11
n + 21
15 to 00
Number of overrun errors, framing errors, and parity errors (transmission
errors)
CIO
1912
CIO
1922
n + 12
n + 22
15 to 00
Number of CRC errors (transmission errors)
CIO
1913
CIO
1923
n + 13
n + 23
15 to 00
Number of command format errors (illegal function codes and illegal
addresses)
CIO
1914
CIO
1924
n + 14
n + 24
15 to 00
Reserved.
Words
Bit
Contents
Boards
(CS Series only)
Units
(CS/CJ Series)
Port 1
Port 2
Port 1
Port 2
Summary of Contents for SYSMAC CJ1W-SCU21-V1
Page 3: ...iv...
Page 5: ...vi...
Page 9: ...x...
Page 15: ...xvi...
Page 89: ...60 Basic Operating Procedure Section 1 9...
Page 151: ...122 RS 232C and RS 422A 485 Wiring Section 3 4...
Page 173: ...144 Host Link Function for Replacing Existing PLCs Section 4 6...
Page 223: ...194 Enhanced Protocol Macro Functions Section 5 6...
Page 277: ...248 Communications Frames Section 6 8...
Page 291: ...262 Basic Operating Procedure in No protocol Mode Section 7 4...
Page 301: ...272 Auxiliary Area and CIO Area Allocations Section 8 3...
Page 391: ...362 Introduction Appendix A...
Page 421: ...392 CompoWay F Master Protocol Appendix B...
Page 513: ...484 E5 K Digital Controller Read Protocol Appendix F...
Page 571: ...542 E5ZE Temperature Controller Write Protocol Appendix I...
Page 587: ...558 E5 J Temperature Controller Protocol Appendix J...
Page 627: ...598 ES100 Digital Controller Protocol Appendix K...
Page 661: ...632 V500 V520 Bar Code Reader Protocol Appendix M...
Page 697: ...668 3Z4L Laser Micrometer Protocol Appendix N...
Page 717: ...688 Visual Inspection System Protocol Appendix O...
Page 755: ...726 V600 V620 ID Controller Protocol Appendix P...
Page 763: ...734 Hayes Modem AT Command Protocol Appendix Q...
Page 767: ...738 Changing Communications Port Settings Using STUP 237 Appendix R...
Page 781: ...752 Revision History...