NOVUS AirGate-Modbus User Manual
Page 19
AirGate-Modbus
NOVUS AUTOMATION
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24
15
th
Byte of the SECURITY_KEY. When the cryptography is enabled, all of the
devices of a single PAN ID should have the same value in this register.
0
255
R/W
25
16
th
Byte of the SECURITY_KEY. When the cryptography is enabled, all of the
devices of a single PAN ID should have the same value in this register.
0
255
R/W
26
Configures which Baud Rate will be used in the operation mode in the USB
interface of the device. In configuration mode, as described in chapter
Configuration Software, the device always Uses Baud Rate 115200.
0 – Baud Rate 1200
1 – Baud Rate 2400
2 – Baud Rate 4800
3 – Baud Rate 9600
4 – Baud Rate 19200
5 – Baud Rate 38400
6 – Baud Rate 57600
7 – Baud Rate 115200
R/W
27
Configures which Baud Rate will be used in the operation mode in the RS485
interface of the device.
0 – Baud Rate 1200
1 – Baud Rate 2400
2 – Baud Rate 4800
3 – Baud Rate 9600
4 – Baud Rate 19200
5 – Baud Rate 38400
6 – Baud Rate 57600
7 – Baud Rate 115200
R/W
28
Configures the parity and how many stops bits will be used in the operation mode
in the USB interface of the device. In configuration mode, as described in chapter
Configuration Software, the device always uses ParityNone_StopBits2.
0 - Parity None Stop Bits 1
1 - Parity None Stop Bits 2
2 - Parity Even Stop Bits 1
3 - Parity Odd Stop Bits 1
R/W
29
Configures the parity and how many stops bits will be used in the operation mode
in the RS485 interface of the device. To facilitate connectivity with devices from
different manufacturers, when configured with ParityNone_StopBits1 or
ParityNone_StopBits2, the device always transmits using 2 stop bits and receives
with 1 stop bit. This allows for communication with devices with both
configurations, but this feature is only available with the RS485 interface.
0 - Parity None Stop Bits 1
1 - Parity None Stop Bits 2
2 - Parity Even Stop Bits 1
3 - Parity Odd Stop Bits 1
R/W
30
Interframe is the time used to characterize the fact that 2 bytes are part of the
same Modbus frame (packet). When two bytes are spaced in less time than the
time configured in this register, they are part of the same packet. When this time
is exceeded, the frame is considered to be finished.
In this register the Interframe Modbus for USB is configured. When configured with
1749, it automatically takes on the values according to the Baud Rate in compliance
with the Modbus protocol. If the network master connected to the USB interface has
a high rate of errors, it is possible that it is not following the Modbus rule. In this
case, increasing the value of the register may solve the problem.
1749
40000
R/W
31
Interframe is the time used to characterize the fact that 2 bytes are part of the
same Modbus frame (packet). When two bytes are spaced in less time than the
time configured in this register, they are part of the same packet. When this time
is exceeded, the frame is considered to be finished.
In this register the Interframe Modbus for USB is configured. When configured with
1749, it automatically takes on the values according to the Baud Rate in compliance
with the Modbus protocol. If a master or slave connected to the RS485 interface has
a high rate of errors, it is possible that it is not following the Modbus rule. In this
case, increasing the value of the register may solve the problem.
1749
40000
R/W
32
As explained in the chapter Configurations – AirGate-Modbus, this register is
used to configure the Modbus address, i.e., the address that identifies the device on
the network. As a standard, since it is a gateway and to not conflict with other
network devices, all of the AirGate-Modbus leave the factory with the address 248.
When in configuration mode, as explained in the Configuration Mode chapter,
the device always answers for the Modbus 246 address using the USB interface.
1
254
R/W
33
When operating in Multi-Master mode, as explained in the MULT-MASTER
chapter, the gateway uses the Multiplexar function that needs a time-out to
release the interface in case the response does not return to one of the masters.
The Time-out is configured in this register. This is the maximum amount of wait
time for a response from a slave
300
65535
R/W