Omron SYSMAC CS1W-SCB41-V1 Operation Manual page 80

Basic Operating Procedure
Board
(CS Series only)
Port 1 Port 2
D32000 D32010
D32001 D32011
D32006 D32016
D32020 D32030
D32021 D32031
Validate the New Settings
Modbus-RTU Slave Mode
The following example is for the default (standard) communications condi-
tions, with the Modbus slave address set to 1 and the default allocation areas
for Coils, Input Registers, and Holding Registers.
Unit
(CS/CJ Series)
Port 1 Port 2
m m+10 15
11 to 08
m+1 m+11 03 to 00
m+6 m+16 15 to 08
m+20 m+30 07 to 00
m+21 m+31 15 to 08
07 to 00
Make the new settings in the Setup Area valid by performing one of the follow-
ing.
• Turn the power OFF and then ON again. The Setup Area allocated in the
DM Area will be read when the power is turned ON.
• Restart the Board by turning ON the Inner Board Restart Bit (A60800) or
restart the Unit turning ON one of the CPU Bus Unit Restart Bits (A50100
to A50115, where the bit number corresponds to the unit number). (See
following table.)
• Restart the port on the Serial Communications Board by turning ON one
of the Communications Board Port Settings Change Bits (A63601 for port
1 and A63602 for port 2) or restart the port on the Serial Communications
Unit by tuning ON one of the Communications Unit Port Settings Change
Bits (A620 to A635: The word will be A620 + unit number and the bit will
be bit 01 for port 1 and bit 02 for port 2).
Bit Setting
0 Defaults
Parity: Even
Stop bits: 1 bit
Baud rate: 19,200 bps
(Start bits: 1 bit, Data length: 8 bits)
A hex Modbus-RTU slave
0 hex Disabled for default communications condi-
tions (baud rate: 19,200 bps)
1 hex Modbus slave address: 1
0 hex Coils allocation area: CIO Area
0 hex Input Registers allocation area: CIO Area
0 hex Holding Registers allocation area: DM Area
Section 1-9
m = D30000 + 100 × unit number
Meaning
51