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CJ-series I/O memory Address
Word No.
Bit No.
Port 1
Port 2
n+5
n+15
15 to 00
15 to 12
11 to 08
07 to 05
04
03
02
01
00
n+6
n+16
15 to 00
15
14
13
12 to 02
01
00
n+7
n+17
15 to 00
15 to 11
10
09
08
07
06
05
04
03
02 to 00
CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit(W494)
NJ-series device variable for CJ-series Unit
Variable name
Port 1
*_P1_SysSetSta
*_P2_SysSetSta
Bit 15 to 12 of
Bit 15 to 12 of
*_P1_SysSetSta
*_P2_SysSetSta
Bit 11 to 8 of
Bit 11 to 8 of
*_P1_SysSetSta
*_P2_SysSetSta
---
---
*_P1_StartBitSta
*_P2_StartBitSta
*_P1_DatBitSta
*_P2_DatBitSta
*_P1_StopBitSta
*_P2_StopBitSta
*_P1_ParityYNSta
*_P2_ParityYNSta
*_P1_ParityBitSta
*_P2_ParityBitSta
*_P1_HwSetSta
*_P2_HwSetSta
*_P1_Ser485Sta
*_P2_Ser485Sta
*_P1_Ser232Sta
*_P2_Ser232Sta
*_P1_TermSta
*_P2_TermSta
---
---
*_P1_SysSetupErr
*_P2_SysSetupErr
*_P1_OperatingSta
*_P2_OperatingSta
*_P1_TransCtlSta
*_P2_TransCtlSta
---
---
*_P1_RmtBusySta
*_P2_RmtBusySta
---
---
*_P1_LclBusySta
*_P2_LclBusySta
*_P1_SigERSta
*_P2_SigERSta
*_P1_SigDRSta
*_P2_SigDRSta
---
---
*_P1_SigCSSta
*_P2_SigCSSta
*_P1_SigRSSta
*_P2_SigRSSta
---
---
n = CIO 1500 + 25 × unit number (word)
Port 2
System Settings
Serial Communications Mode
Baud Rate
Reserved
Start Bits
Data Length
Stop Bits
Parity (Yes/No)
Parity (Even/Odd)
Hardware Settings
RS-422/485 Setting Status
RS-232C Setting Status
Terminating Resistance Setting Sta-
tus
Reserved
System Setup error
Port Operating Status
Communications Status
Reserved
Remote Unit Busy
Reserved
Local Unit Busy
ER signal
DR signal
Reserved
CS signal
RS signal
Reserved
Appendices
Meaning
A-5
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