Setting And Word Allocation; Dm Fixed Allocation Words - Omron CP1E CPU UNIT SOFTWARE User Manual

14 Serial Communications

14-4-3 Setting and Word Allocation

DM fixed allocation words and Auxiliary Area words are allocated for the Modbus-RTU Easy Master
according to the CPU Unit type and connected port as shown below.
CP1E CPU Unit serial port
CP1E N14/20 CPU
Unit
CP1E N30/40/60 or
NA20 CPU Unit

DM Fixed Allocation Words

Word
Built-in RS-232C
port of CP1E
N14/20/30/40/60
or NA20 CPU
Unit
D1200
D1201
D1202
D1203 to D1249
D1250
D1251
D1252
D1253
D1254 to D1299
14-12
Built-in RS-232C port
Built-in RS-232C port
Serial option port
Serial option port
Bits
of CP1E
N30/40/60 or
NA20 CPU Unit
D1300 00 to 07
08 to 15
D1301 00 to 07
08 to 15
D1302 00 to 15
D1303 to D1349 00 to 15
D1350 00 to 07
08 to 15
D1351 00 to 07
08 to 15
D1352 00 to 07
08 to 15
D1353 00 to 15
D1354 to D1399 00 to 15
DM fixed allocation words
D1200 to D1299
D1200 to D1299
D1300 to D1399
Contents
Command Slave address (00 to F7 hex)
Reserved (Always 00 hex.)
Function code
Reserved (Always 00 hex.)
Number of communications data bytes (0000 to
005E hex)
Communications data (94 bytes maximum)
Response Slave address (01 to F7 hex)
Reserved (Always 00 hex.)
Function code
Reserved
Error code
(See error codes in the following table. )
Reserved (Always 00 hex.)
Number of response bytes (0000 to 03EA hex)
Response data (92 bytes maximum)
CP1E CPU Unit Software User's Manual(W480)
Auxiliary Area bits
A640.00 to A640.02
A640.00 to A640.02
A641.00 to A641.02