SMAX MODBUS®
NOTE
Please note that when the count is decreasing (count down information) and
you cross the zero, the value immediately after 0 will be 2
N-1
, where N is the
overall information expressed in bits. Let's suppose the overall information is
2,000, i.e. 11 bits (11 bits are necessary to represent 2,000 information).
2
11
= 2,048, thus the value after 0 will be 2,047.
...
2044 2045 2046 2047
0
1
2
3
4
...
bit 2 … 7
Not used.
Byte 1
Not used.
Node address [0004 hex]
[Register 5, Unsigned16, rw]
This register allows to set the node address of the device.
The default address is 1. The individual Slave devices are assigned addresses in
the range of 1 – 247.
The address 0 is reserved to identify a “broadcast” exchange (Master sends a
request to all Slaves connected to the Modbus network). See the “6.1 Modbus
Master / Slaves protocol principle” section on page 44.
The Modbus Master node has no specific address, only the Slave nodes must
have an address. Each Slave must have a unique address.
Addresses from 248 to 255 are reserved.
If you set the address 0, device will be set to 1 automatically.
Equally if you set an address higher than 247, device will be set to 1
automatically.
Default = 1 (min. = 1, max. = 247)
Serial com baud rate [0005 hex]
[Register 6, Unsigned16, rw]
This is meant to set the data transmission rate (baud rate and parity bit) of the
serial port. The default value is 04 hex = Baud rate 19,200 bit/s, Parity bit Even.
Default = 4 (min. = 0, max. = 8)
MAN SMAX MB E 1.2
Programming parameters
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