Configuring the MES1A/B
Manual Documentation Number: MES1A/MES1B-2106m PN7138-rev001
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The MES1A/B must be configured to use the same protocol used by the
attached Modbus device.
To configure the type of
Serial Protocol
27.
At the
Serial Protocol (1=Modbus/RTU 2=Modbus/ASCII)
(1)
prompt
o
To keep the current setting, press
Enter
o
To select
Modbus/RTU,
type
1
o
To select
Modbus/ASCII
, type
2
28.
To accept changes, press
Enter
Serial Interface
Serial Interface
parameters include the type of interface and the data
rate/format of the data. The MES1A/B must use the same type of interface
and serial parameters as that of the Modbus device it is connected to.
MES1A Serial Interface
Since the MES1A is designed with an RS-232 interface, its default Interface
Type is RS-232.
Although RS-422/485 four-wire and RS-485 two-wire options are given in the
configuration menu, reconfiguring the MES1A for anything other than RS-232
will prevent the device from operating correctly.
MES1B Serial Interface
The MES1B is designed with an RS-422/485 interface and can be configured
for four-wire operation or two-wire operation.
Although RS-232 option is provided in the configuration menu, reconfiguring the
MES1B for RS-232 will prevent the device from operating correctly.
To configure
Interface Type
parameters:
29.
At the
Interface Type (1=RS232 2=RS422/RS485+4-wire
3=RS485+2-wire) (3)
prompt:
o
To keep the current setting, press
Enter
o
To select
RS-422/RS-485 four-wire
, type
2
o
To select
RS-485 two-wire,
type
3
