YOKOGAWA UPM100, User Manual

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1-3
IM 77C01H01-10EN
Setup
1
Use the DIP switches to enter the settings on UPM100 without display function.
Referring to the diagram below, set the binary values, with the first bit on the left.
When using 920 MHz Wireless Communication, please use the factory setting values except
for the address.
Note: 920 MHz wireless communication can be used only in the Republic of Korea.
1
0
<Baud rate>
00: 2400 bps
01: 9600 bps
10: 19200 bps
<Address (station number)>
0: Usage prohibited
1 to 99 can be set (1 to 31
recommended)
(Initial setting: 1)
<Data length>
0: 8 bits
1: 7 bits
<Communication protocol>
00: PC link without SUM
01: PC link with SUM
10: MODBUS ASCII
11: MODBUS RTU
<Parity>
00: None
01: Even
10: Odd
11: Usage prohibited
<Stop bit>
0: 1 bit
1: 2 bits
denotes initial settings.
<UPM01 protocol>
0: None
1: With protocol
RS-485 communication protocol (COMM)
Set the communication protocol identical to that of the higher-level device to be connected.
RS-485 communication baud rate (B-RT)
Set the baud rate identical to that of the higher-level device to be connected. (Otherwise,
proper communication cannot be achieved.)
Parity (PRI)
Set the handling of parity to be carried out when data is sent or received. Set the parity bit
state identical to that of the higher-level device to be connected.
Stop bit (STP)
Set the stop bit identical to that of the higher-level device to be connected.
Data length (DLN)
Set the data length identical to that of the higher-level device to be connected. (When
“MODBUS (RTU mode)” is selected in protocol selection, select “8” for the data length.
When “MODBUS (ASCII mode)” is selected, select “7” or “8.”)
RS-485 station number (ST-NO)
Set the station number of the UPM100 itself. A station number of 1 to 99 may be assigned
in any order. However, there is a limitation - the number of UPM100 to be connected to a
single communication port is limited to 31.
When connecting two or more power monitors to a single communication port, make sure
none of the station numbers 1 to 31 is set twice.
1.2 Notes on Setting RS-485 Communication Conditions