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Configuration
20 S1A53844 01/2011
Configuration of the communication parameters
Access to the parameters
All parameters are accessible in the [COMMUNICATION MENU] COM submenu of [PROGRAMMING
MENU] Programming mode.
Description
Notes:
• Baud rate and parity bit should be uniform inside the same network.
• Modbus address should not be duplicate inside the same network.
• Stop bit isn't configurable. ATV212 Tx is 2 stop bit, Rx is 1 or 2 stop bits. This permits a good comunication
with Master in 1 and 2 stop bits.
• F800 and F801 parameters are used to define the baudrate and parity of RJ45 port.
• F820 and F821 parameters are used to define the baudrate and parity of Open style connector port.
• F802 and F803 parameters are used to define the modbus address and communication time out for
both ports (RJ45 et Open style connector). Set F802 between 1 to 247 (address 0 is not active).
• F807 parameter enables to select the communication command channel: RJ45 or Open style connector.
The port not set as the communication command channel may be used for monitoring purposes to check
that the setting change on F807 was effectively taken into account.
DANGER
UNINTENDED EQUIPMENT OPERATION
Refer to «Serial communication parameters» in the Altivar 212 Programming manual, for more information
on how to set these serial communication parameters.
Failure to follow these instructions will result in death or serious injury.
Parameters Modbus
address
Adjustment range Default
setting
Valid
after
[Mdb RJ45 baud] (F800)
Communication Modbus RJ45 Baud rate
2048
16#800
0 [9600 bps]
1 [19200 bps]
1 Power cycle
[Mdb RJ45 parity] (F801)
Communication Modbus RJ45 Parity
2049
16#801
0 [No] (No parity)
1 [Even] (Even parity)
2 [Odd] (Odd parity)
1 Power cycle
[Modbus address] (F802)
This address is used whatever the port used.
2050
16#802
0 ... 247 1 Setting
[Com. time out] (F803)
Communication time out
2051
16#803
0 or
1 ... 100 seconds
3 Setting
[Com channel choice] (F807)
Communication channel choice
2055
16#807
0 [RJ45]
1 [Open style]
1 Setting
[Mdb network baud] (F820)
Modbus network baud rate
2080
16#820
0 [9600 bps]
1 [19200 bps]
1 Power cycle
[Mdb network parity] (F821)
Modbus network parity
2081
16#821
0
[No] (No parity)
1 [Even] (Even parity)
2 [Odd] (Odd parity)
1 Power cycle
[Network protocol] (F829)
Communication Network protocol selection
2089
16#829
1 ... 5
1 [Mdb RTU]
1 Power cycle