Omron CP1E CPU UNIT SOFTWARE User Manual page 244

14 Serial Communications
Flags for Modbus-RTU Easy Master for Serial Option Port
A641.00 Execution Bit
A641.01 Execution Normal Flag
A641.02 Execution Error Flag
(1)Turn ON A641.00 (Execution Bit) to send command data stored starting at D1300. For details, refer
to DM Area Data on page 14-19.
Words
Serial Option Port
D1300
D1301
D1302
D1303 to D1349
Precautions for Correct Use Precautions for Correct Use
The Execution Bit will automatically turn OFF. Do not turn OFF the bit through the ladder.
(2)When a command has been sent successfully, A641.01 (Execution Normal Flag) will turn ON, and
the response data will be stored starting from D1350.
Words
Serial Option Port
D1350
D1351
D1352
D1353
D1354 to D1399
(3)If a communications error occurs, A641.02 (Execution Error Flag) will turn ON, and the error code
will be stored in D1352.
14-18
(1) (2)
Bits
00 to 07 Command Slave address (00 to F7 hex)
08 to 15 Reserved (Always 00 hex.)
00 to 07 Function code
08 to 15 Reserved (Always 00 hex.)
00 to 15 Number of communications data bytes (0000 to
005E hex)
00 to 15 Communications data (94 bytes max.)
Bits
00 to 07 Response Slave address (01 to F7 hex)
08 to 15 Reserved (Always 00 hex.)
00 to 07 Function code
08 to 15 Reserved
00 to 07 Error code
08 to 15 Reserved (Always 00 hex.)
00 to 15 Number of response bytes (0000 to 03EA hex)
00 to 15 Response data (92 bytes max.)
(3)
Setting
Setting
CP1E CPU Unit Software User's Manual(W480)