Omron CJ1W-SCU22, Руководство по эксплуатации, Страница: 277 / 478

8-5
8 Loopback Test
CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit(W494)
8-2 De
vice
V
a
ria
b
le f
o
r CJ-series Un
it (L
oo
pba
c
k T
est)
8
8-2
-2 De
vice V
ar
iab
les f
or C
J
-Ser
ies U
nit f
o
r
Status
* When the default settings are used, the Baud Rate, Start Bits, Data Length, Stop Bits, Parity Yes/No, and Parity
Even/Odd settings are disabled. To specify settings for these items to the settings other than the default, apply
user settings.
Default settings are Baud Rate: 9,600 bps, Start Bits: 1 bit, Data Length: 7 bits, Parity: even parity and Stop Bits:
2 bits.
You can read information concerning the loopback test status. If an error occurs, the device variable for
CJ-series Unit shown below will become TRUE.
*_P1_BaudrateCfg *_P2_BaudrateCfg USINT RW Baud Rate
(unit: bps) 0: 9600
3:1200
4: 2400
5: 4800
6: 9600
7: 19200
8: 38400
9: 57600
10: 115200
11: 230400
Default: 0
8-2-2 Device Variables for CJ-Series Unit for Status
Device variable for CJ-series Unit
Type R/W Name Function
Port 1 Port 2
*_P1_LbtSta *_P2_LbtSta WORD R Loopback Test
Status Bit 15: Error
Bit 08: DTR check error
Bit 07: CTS check error
Bit 05: Timeout error
Bit 04: Parity error
Bit 03: Overrun error
Bit 02: Framing error
Bit 00: Comparison error
*_P1_LbtErrSta *_P2_LbtErrSta BOOL R Error TRUE: Error
FALSE: Normal
*_P1_LbtDRErr *_P2_LbtDRErr BOOL R DTR Check
Error TRUE: DTR check error
FALSE: Normal
*_P1_LbtCSErr *_P2_LbtCSErr BOOL R CTS Check
Error TRUE: CTS check error
FALSE: Normal
*_P1_LbtTimeoutErr *_P2_LbtTimeoutErr BOOL R Timeout Error TRUE: Timeout error
FALSE: Normal
*_P1_LbtParityErr *_P2_LbtParityErr BOOL R Parity Error TRUE: Parity error
FALSE: Normal
*_P1_LbtOverRunErr *_P2_LbtOverRunErr BOOL R Overrun Error TRUE: Overrun error
FALSE: Normal
*_P1_LbtFramingErr *_P2_LbtFramingErr BOOL R Framing Error TRUE: Framing error
FALSE: Normal
Device variable for CJ-series Unit
Type R/W Name Function
Port 1 Port 2