Mitsubishi Electric MELSEC iQ-R Series User Manual page 395

Monitor data area (Un\G9730 to 13055/13058 to 16383(default))
The monitor data is stored in one-word units in the configuration below.
For an example of the send/receive data monitoring, refer to the following section.
Page 394 Send/receive Data Monitoring Example
b15 b14 b13 b12 b11
0 0 0 0
0 0 0 1
0 0 1 0
0 0 1 1
0 1 0 0
Data classification (b12 to b15)
0: When receiving data
1: When transmitting data
2: When the RS(RTS)/ER(DTR)signal is changed
3: When a reception error occurs
4: When detecting a CD(DCD) to DR(DSR)signal change
*1 FE : Framing error
OVR : Overrun error
PE : Parity error
b10 b9 b8 b7 b6
CD CS DR
(DCD) (CTS) (DSR)
CD CS DR
(DCD) (CTS) (DSR)
CD CS DR
(DCD) (CTS) (DSR)
CD CS DR
(DCD) (CTS) (DSR)
CD CS DR
(DCD) (CTS) (DSR)
Signal condition (b8 to b11)
* System area
b5 b4 b3 b2 b1 b0
Received data
Transmitted data
RS ER
0
(RTS) (DTR)
0 FE OVR PE
(*1)
0
20 USING SEND/RECEIVE DATA MONITORING FUNCTION
20.2 Send/receive Data Monitoring Function Settings
When receiving data
When transmitting data
When the RS(RTS)/ER(DTR)
signal is changed
When a reception error occurs
When detecting a CD(DCD) to
DR(DSR) signal change
20
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