Instruction Manual PSE2xxMod
7
2.5 Setting the device address and baud rate
The rotary switches for setting the device address at the bus and a 2-pin sliding
switch for setting the baud rate are located behind the terminals.
The rotary switches indicate the tens and ones places of the address selected. If the
switches are resting in the position 00 the address can be changed via the Modbus
with HR 38.
The delivery setting is 00, the PSE2xxMod reports to the bus with the address 1.
If the switches have been used to set the address (i.e. the switch setting is > 00), this
value cannot be changed via the Modbus.
If the Modbus master uses the broadcast address (= 0), each PSE2xxMod on the bus
will be addressed, regardless of the actual valid address in the device. However, no
answer is being sent by the PSE2xxMod on broadcast messages.
Switch configurations:
Setting the baud rate:
4
3
Baud rate
OFF OFF baud rate is set via bus (default = 19200 bps)
OFF
ON
9600 bps
ON
OFF
19200 bps
ON
ON
57600 bps
‘x’ in the device name stands for a number in the range 0..9. ‘xx’ in the
device name stands for a number in the range 10..999.
2.6 Line Termination
By setting the two switches 1+2 to ON, a line termination of the Modbus can be
realized. The line termination is necessary at the first and the last node on the line.
