Omron CJ1W-SCU22, Руководство по эксплуатации, Страница: 276 / 478

8 Loopback Test
8-4
CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit(W494)
8-2 Device Variable for CJ-series Unit
(Loopback Test)
This section describes the device variable for CJ-series Unit used in the loopback test.
8-2-1 Device Variables for CJ-Series Unit for System Settings
Device variable for CJ-series Unit
Type R/W Name Function
Port 1 Port 2
*_P1_PortCfg *_P2_PortCfg WORD RW Port Setting Bit 15: User-specified set-
ting inclusion (*)
Bits 08 to 11: Serial com-
munications mode (F hex:
Loopback test)
Bit 04: Start bits
Bit 03: Data length
Bit 02: Stop bits
Bit 01: Parity (Yes/No)
Bit 00: Parity (Even/Odd)
*_P1_SerSetCfg *_P2_SerSetCfg BOOL RW User-specified
Setting Inclu-
sion FALSE: Default
TRUE: User settings
Default: FALSE
There is no specific
device variable for CJ-
series Unit to refer-
ence the serial commu-
nications mode.
When you set this set-
ting, set to bits 08 to 11
of *_P1_PortCfg.
There is no specific
device variable for CJ-
series Unit to refer-
ence the serial commu-
nications mode.
When you set this set-
ting, set to bits 08 to 11
of *_P2_PortCfg.
Bit
string RW Serial Commu-
nications Mode Serial communications
mode
3 hex: No-protocol
6 hex: Protocol macro
9 hex: Serial Gateway
A hex: Modbus-RTU slave
F hex: Loopback test
Default: 0
*_P1_StartBitCfg *_P2_StartBitCfg BOOL RW Start Bits 1 start bit is always used
regardless of whether the
setting is FALSE/TRUE.
FALSE: 1 bit
TRUE: 1 bit
Default: FALSE
*_P1_DatBitCfg *_P2_DatBitCfg BOOL RW Data Length FALSE: 7 bits
TRUE: 8 bits
Default: FALSE
*_P1_StopBitCfg *_P2_StopBitCfg BOOL RW Stop Bits FALSE: 2 bits
TRUE: 1 bit
Default: FALSE
*_P1_ParityYNCfg *_P2_ParityYNCfg BOOL RW Parity FALSE: Yes
TRUE: No
Default: FALSE
*_P1_ParityBitCfg *_P2_ParityBitCfg BOOL RW Parity
Even/Odd FALSE: Even
TRUE: Odd
Default: FALSE