PDU–4xx–W
©
Dinel, s.r.o.
26
•
„Addr“
this parameter defines the address of the device, accordingly to Modbus protocol. It can
be set in range from 0 to 199. If the value 0 is set then device, responds to frames with
address 255 (FFh).
•
„bAud“
this parameter determines RS-485 interface baud rate. It can be set to one of 8 possible
values:
”1.2”, ”2.4”, ”4.8”, ”9.6”, ”19.2”, ”38.4”,”57.6”,”115.2”
, which respond to the
baud rates of 1200, 2400, 4800, 9600, 19200, 38400, 57600 and 115200 bit/s respectively.
•
„mbAc“
this parameter sets the access to the configuration registers of the device. Possible values:
„on“
configuration registers can be set via RS-485 interface.
„oFF“
configuration registers can not be set via RS-485 interface.
• „mbtO“
this parameter defines maximal time (sec) between following frames received by the device.
If the delay will be greater than the value of
”mbtO”
parameter, the relays and the current
output which are controlled via RS-485 interface, will set to alert state (see
"OUtP"
menu,
“rEL1”
menu description). Parameter
“mbtO”
can be set to values from 0 to 99 seconds.
The value 0 means that the time will be not controlled.
• „rESP“
this parameter defines minimal (additional) delay between the Modbus message and the
answer of the device (received and sent via RS-485 interface). This additional delay allows
the device to work with poor RS-converters which do not works properly on baud rates
higher than 19200. This parameter can be set to one of values:
The access to registers no 04h i 05h cant be denied by
”mbAc”
parameter
(see:
LIST OF REGISTERS
).
