Using the Modbus Port Tab
Original instructions
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You may change Modbus communication options using the Modbus Port tab of the Control Expert editor:
NOTE: If you need the Modbus address of the controller, go to the 140 CPU 67• 6• module and find the address using the keypad.
Configuring Modbus Plus (MB+) Addresses
When configuring the MB+ address for the first time:
WARNING
UNINTENDED EQUIPMENT OPERATION.
Do not change the Modbus Plus (MB+) address after the first configuration.
Failure to follow these instructions can result in death, serious injury, or equipment damage.
Describing
Modbus Port tab:
Item
Option
Value
Description
Modbus Port
Baud
9600
Data must be specified for every link.
50-19200 kBit/s
Data Bits
8
Stop Bits
1 or 2
Parity
EVEN
ODD
NONE
Delay (ms)
10 ms
Address
1 -247
For Modbus switchover
1 - 119 (Primary CPU)
129 - 247
(Standby CPU)
Head Slot
0
Mode
RTU
ASCII
Protocol
RS232
RS485