KW8M Eco-POWER METER
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4.2.3 MODE3
(Mode for setting of each parameter for serial communication (RS485))
Protocol setting mode
PROT
Mode defines communication protocol of main unit via serial communication (RS485).
・
Select from MEWTOCOL / MODBUS(RTU).
Station number setting mode
NO
Mode defines an individual station no. for each unit when two or more units communicate via
serial communication (RS485).
・
It can be set the range of 1 to 99.
Transmission speed (Baud rate) setting mode
SPD
Mode defines serial communication (RS485) transmission speed. Define the transmission
speed according to the master’s (PLC etc.).
・
Select from 19200/38400/2400/4800/9600[bit/s].
Transmission format setting mode
FMT
Mode defines serial communication (RS485) transmission format (Data length, Parity).
Define the transmission format according to the master’s (PLC etc).
・
Select from 8bit-o/7bit-n/7bit-E/7bit-o/8bit-n/8bit-E.
“n (none)” means parity is not available.
“E (Even)” means parity is even number.
“o (odd)” means parity is odd number.
*With MODBUS (RTU) protocol, it works only with 8bit.
Response time setting mode
RESP
Mode defines serial communication (RS485) response time of main unit.
When command is received, it sends response after setting response time passes.
・
It can be set the range of 1 to 99 ms. (initial: 5)
MODE3 Setting flow chart
Monitor
↓
<MODE>
MODE 1 display
↓
<ITEM/
△
> 2 times
MODE 3 display
↓
<SET>
Protocol setting mode
Press <ITEM/
△
>, <SHIFT/
▽
> to change MEWTOCOL
⇔
MODBUS(RTU).
MEWTOCOL
MODBUS (RTU)
↓
<SET>
