6
Conf.A1 - A2 - A3 Address configurators (1 to 255)
Conf.M
Communication mode configurator
Conf.B
Transmission speed configurator
Conf.F
Transmission mode configurator
An address is assigned to the device using the first three
configurators.
The other configurators will define the operating modes.
In details:
Conf. A1 - A2 - A3 - Modbus Address
The Modbus address is defined by configuring the first three positions.
Each of them may be “no configurator”=0, 1 to 9.
With the MODBUS protocol, the value of the address (
in decimal
format
), is obtained as follows:
Conf. Conf.A2x10 + Conf.A3
Example:
Conf.A1=2, Conf.A2=3, Conf.A3=“no configurator”:
the address value is 230.
Conf.M - Modbus Transmission Mode
The transmission mode is defined as follows:
- 1
ASCII mode
- Other values or
“no configurator”
RTU mode
Conf.B - Modbus Transmission Speed
The transmission speed is defined as follows:
- 1
1,2 kbit/s
- 2
2,4 kbit/s
- 3
4,8 kbit/s
- 4
9,6 kbit/s
- 5
19,2 kbit/s
- 6
38,4 kbit/s
- “no configurator”
“
default
” (speed 19,2 kbit/s)
Conf.F - Mode of operation
The additional functionalities are defined as follow:
- 1
Contact repetition side-by-side
with DMX
3
circuit breaker
- 2
Contact repetition side-by-side
with DPX circuit breaker
- Other values or
“no configurator”
Use with supervision system
Configuration
Size: 6 DIN modules
Operating temperature: (-10) – (+55) °C
Technical features
RT
RT
24V
*
288 12
24V
RL4
RL5
RL6
RL1
RL2
RL3
ON
TX
RX
1 2 +
SG
--
24V
RS485/DMX
3
1 2 3 4
DPX
288 12
24V
RL4
RL5
RL6
RL1
RL2
RL3
ON
TX
RX
1 2 +
SG
--
24V
RS485/DMX
3
1 2 3 4
DPX
RT= Characteristic cable impedance (e.g. 120 Ω
for Belden cable 9842).
The termination resistances must only be
connected to the first and last RS -485 nodes,
between the + and - terminals. All "SG"
terminals must be connected to each other.
Also, connect the screen to the earth in one
point for each line only, ensuring that screen
continuity is maintained across the whole line.
It is recommended that a shielded communication
cable is used to connect item 288 12 to the DMX
switch (Belden 9842 or equivalent).
*
RS485
Interface
