Omron SYSMAC CP Series, Руководство пользователя

Страница: 293 / 578

14-15
14 Serial Communications
CP2E CPU Unit Software User’s Manual(W614)
14-4
Modb
u
s
-R
TU Easy
Master F
unc
tion
14
14-4-
3
Sett
ing an
d W
o
rd 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.
z
DM Fixed Allocation Words
14-4-3 Setting and Word Allocation
CP2E CPU Unit serial port DM fixed allocation words Auxiliary Area bits
CP2E E -type CPU
Unit
Built-in RS-2 3 2C port D1200 to D1299 A640.00 to A640.02
CP2E S -type CPU
Unit
Built-in RS-2 3 2C port D1200 to D1299 A640.00 to A640.02
Built-in RS-4 8 5 port D1 3 00 to D1 3 99 A641.00 to A641.02
CP2E N14/20 CPU
Unit Serial Port 1 D1200 to D1299 A640.00 to A640.02
Serial Port 1 (EX) D1400 to D1499 A6 38 .00 to A6 38 .02
CP2E N 3 0/40/60 CPU
Unit
Serial Port 1 D1200 to D1299 A640.00 to A640.02
Serial Port 2 D1 3 00 to D1 3 99 A641.00 to A641.02
Serial Port 1 (EX) D1400 to D1499 A6 38 .00 to A6 38 .02
Word
Bits Contents
Built-in RS232C
port of CP2E
E/S -type
CPU Unit or
Serial Port 1 of
CP2E N -type
CPU Unit
Built-in RS-485
port of CP2E
S -type CPU
Unit or Serial
Port 2 of CP2E
N30/40/60 CPU
Unit
Serial Port 1
(EX) of CP2E
N -type CPU
Unit
D1200 D1 3 00 D1400 00 to 07 Command Slave address (00 to F7 hex)
0 8 to 15 Reserved (Always 00 hex.)
D1201 D1 3 01 D1401 00 to 07 Function code
0 8 to 15 Reserved (Always 00 hex.)
D1202 D1 3 02 D1402 00 to 15 Number of communications
data bytes (0000 to 005E hex)
D120 3 to D1249 D1 3 0 3 to D1 3 49 D140 3 to D1449 00 to 15 Communications data (94
bytes maximum)
D1250 D1 3 50 D1450 00 to 07 Response Slave address (01 to F7 hex)
0 8 to 15 Reserved (Always 00 hex.)
D1251 D1 3 51 D1451 00 to 07 Function code
0 8 to 15 Reserved
D1252 D1 3 52 D1452 00 to 07 Error code
(See error codes in the follow-
ing table. )
0 8 to 15 Reserved (Always 00 hex.)
D125 3 D1 3 5 3 D145 3 00 to 15 Number of response bytes
(0000 to 0
3 EA hex)
D1254 to D1299 D1 3 54 to D1 3 99 D1454 to D1499 00 to 15 Response data (92 bytes
maximum)