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2 Initial Settings and Allocations of Device Variable for CJ-series Unit
CJ-series Serial Communications Units Operation Manual for NJ-series CPU Unit(W494)
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*1 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 set these items to values other than the default, apply user settings.
The default settings used for No-protocol Mode, Protocol macro, Serial Gateway Mode and Loopback Test Mode are as
follows: Baud Rate: 9,600 bps, Start Bits: 1 bit, Data Length: 7 bits, Parity: Even, and Stop Bits: 2 bits (when the serial
communications mode is either Host Link, Protocol macro, Serial Gateway, or Loopback Test).
The default settings used for Modbus-RTU Slave Mode are as follows: Baud Rate: 19,200 bps, Data Length: 8 bits, Parity:
Even, and Stop Bits: 1 bit.
*2 Do not set undefined settings and baud rates that are not supported by the Serial Communications Mode. A System
Setup error will occur. Settings of 1 and 2 are reserved for the system and should not be used.
*_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
*_P1_BaudrateCfg *_P2_BaudrateCfg USINT RW Baud Rate
(unit: bps) (*2) 0: 9,600
3: 1,200
4: 2,400
5: 4,800
6: 9,600
7: 19,200
8: 38,400
9: 57,600
10: 115,200
11: 230,400
Default: 0
Device variable for CJ-series Unit
Type R/W Name Function
Port 1 Port 2