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Configuration
S1A53844 01/2011 21
Configuration of the control source
The Altivar 212 can receive commands and setpoint from the Modbus network or from the terminals (F, R,
RES, VIA, VIB). In the default configuration, both commands and setpoint come from the terminals.
The LOC/REM key of the operation panel is available to switch the control to the operation panel. The inputs
F, R or RES can be configured to switch the control from the Modbus network to the terminals.
Different usual possibilities are described in the chapters below:
• Control from the Modbus network,
• Control from the terminals, monitoring from the Modbus network,
• Control from the Modbus network or the terminals, switched via Modbus,
• Command from the Modbus network, setpoint from the Modbus network or the terminals switched to by a
logic input.
Refer to these examples.
Control by the Modbus network
The commands and the setpoint come from the Modbus network. The signals wired on the terminals are
ignored. The LOC/REM key is valid.
Below is the list of parameters that must be configured.
Access to the parameters
Description
Parameters Location
[Command mode sel] (CMOd)
[Frequency mode sel] (FMOd)
[PROGRAMMING MENU] Programming mode
Other parameters [COMMUNICATION MENU] COM submenu of
[PROGRAMMING MENU] Programming mode.
Parameters Modbus
address
Setting Default
setting
Valid
after
[Command mode sel] (CMOd)
Remote mode start/stop control
3
16#3
2 [Communication]
Serial communication
0 Setting
[Frequency mode sel] (FMOd)
Remote mode primary speed reference source
4
16#4
4 [Serial com ref.]
Serial communication
1 Setting
[Com channel choice] (F807)
Communication channel selection
2055
16#807
0 [RJ45] or
1 [Open style]
1 Setting
[Network protocol] (F829)
Communication Network protocol selection
2089
16#829
1 [Modbus-RTU protocol] 1 Power
cycle
0
1
2
1
2
3
4
5
4
0
1
LOC
REM
Commands CMOd
Operation panel
Modbus
commands
Terminals
Operation panel
Modbus
setpoint
UP/DOWN
Bit 15 of
command word FA00
Serial com. command priority bit
ON
Operation
panel
Commands
Setpoint
Modbus commands
Modbus setpoint
Setpoint
FMOd
OFF
ON
OFF
Operation
panel
VIB
VIA
Bit 14 of
command word FA00
Serial com. setpoint priority bit
REM
LOC
REM
LOC
F807
Communication
RJ45 channel: Modbus
Network channel:
Paremeter F829