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Idiomas disponibles
Idiomas disponibles
7 COmmANDS AND SIgNALLINg
Commands and signalling are coded on 2 command and 2 signalling bytes.
The available informations are the following :
Remote control
Open, close, stop
Position set point
Local control inhibition
AUTO / ON-OFF selection
Remote signalling
Position feedback
Power supply on
End of travel limit - Open
End of travel limit - Closed
Indication relay 1 status
Indication relay 2 status
Indication relay 3 status
Indication relay 4 status
Fault relay
Local control
Open, close, stop
Separated hardwired command
Open / close emergency command (ESD)
(*) option
7.1 COmmANDS
Valve control by the Profibus fieldbus is possible only if the actuator rotating selector is on the «remote»
position.
Conditions which can prevent a command to be executed :
- Actuator rotating selector on «local» or «OFF»
- Alarm tripped (motor thermal overload)
- Emergency command received (ESD)
Command byte description
Commands slightly varies according to the type of controls mounted on the actuator.
10
INTEGRAL+
POSIGAM+
MODUGAM+
•
•
•
•
•
•
•
•
•
•
• (*)
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
• (*)
• (*)
•
•
•
INTEGRAL CONTROLS (on-off)
Adress 0 :
Bit n°
Value
Description
0
STOP (MAINTAINED COMMAND MODE)
Bit 1
1
NO STOP (PULSE COMMAND MODE)
0
NO COMMAND
Bit 2
1
CLOSE COMMAND
0
NO COMMAND
Bit 3
1
OPEN COMMAND
0
NO COMMAND
Bit 4
1
LOCAL CONTROL (ACTUATOR SELECTOR) INHIBITED
Bit 5 to 8
-
NOT USED
POSIGAM / MODUGAM (positioner)
Adress 0 :
Bit n°
Value
Description
0
STOP (MAINTAINED COMMAND MODE)
Bit 1
1
NO STOP (PULSE COMMAND MODE)
0
NO COMMAND
Bit 2
1
CLOSE COMMAND
0
NO COMMAND
Bit 3
1
OPEN COMMAND
0
AUTO MODE (see §8.2 proportional control)
Bit 4
1
LOCAL CONTROL (ACTUATOR SELECTOR) INHIBITED
Bit 5 to 8
-
NOT USED
Adress 1 : proportional command (set-point)
Bit n°
Value
Description
Bit 1 to 8
0-255
0=0% (closed), 255=100% (open)
Notes :
STOP : if this command is maintained at 0 (most common case), the open and close commands
have to be maintained. If this command is set to 1, a short duration open / close command pulse
is sufficient to drive the valve to the open or closed position. In this case, the STOP command (0)
can be used to stop the actuator during the travel in its current position.
CLOSE / OPEN :
Open and Close command
According to the actuator configuration, it is possible to select a priority to the opening or to the closing
command (refer to NR1088).
11
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