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Festo CTEU-AS Description, Installation And Interfaces page 2

Bus node

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M12 socket, AS-interface Out
4
1
3
2
Fig. 3
Note
Electromagnetic interference
• Make the connection to functional earth via the connected device or the elec-
trical connecting plate CAPC-....
Functional test:
– The LED "PS" is illuminated green when the power supply is correctly presented.
– The LED "X1" is lit green if a device is connected and the I-Port communication is
ready to function (
chap. 8).
7
Basic settings for fieldbus communication
7.1 Removal of the DIL switch cover
To set the DIL switches, the cover must be removed:
1. Switch off the power supply.
2. Unscrew the two mounting screws of the transparent cover and remove the
cover.
7.2 Setting the DIL switches
The bus node has a DIL switch group with 2 DIL switches. Set the valve configura-
tion with DIL switches 1 and 2.
1
1
DIL switches 1 and 2
Fig. 4
I/O configuration,
Valve configuration
AS-interface slaves
8I/8O
– The first 8 solenoid coils are actuated.
– The number of valves is not checked.
– The profile for both AS-interface slaves is 7.A.7
(factory setting).
16 I/16 O
– The first 16 solenoid coils are actuated.
– The number of valves is not checked.
– The profile for both AS-interface slaves is 7.A.A.
4 I/4 O
– The first 4 solenoid coils are actuated.
– The number of valves is not checked.
– The profile of the AS-interface slave is 7.F.E.
(standard slave).
Reserved
Fig. 5
7.3 Mounting of the DIL switch cover
1. Place the cover carefully on the bus node. Make sure that the seal is seated
correctly!
2. Tighten the mounting screws with max. 0.4 Nm with a Torx screwdriver
(size T10) or a slot screwdriver that fits.
7.4 Address allocation
Before connecting to the AS-Interface bus: Assign a free address to the slave.
Addressing can be performed via an AS-interface addressing device in accordance
C.S.2.1, an addressing cable and through an AS-interface master.
The number of connected solenoid coils is set through the DIL switches
(
chap. 7.2). Depending on this setting, the number of slave addresses, IO and
ID code are automatically configured and saved (
Number of
Slave
solenoid coils
address
1 ... 4
1 Standard
1 ... 8
1 Extended A+B
1 ... 16
1 Extended A+B
Fig. 6
Pin
Allocation
1
AS-interface +
2
0 V (auxiliary power supply)
3
AS-interface –
4
24 V (auxiliary power supply)
DIL
switches
1
OFF
ON
OFF
ON
subsequent table).
Profile 1
Profile 2
AS-interface-
master type
S-7.F.E
M1 ... M4
S-7.A.7
S-7.A.7
M4
S-7.A.A
S-7.A.A
M4
Assignment of slave addresses to physical outputs/valves of the connec-
ted devices can be found in the respective product documentation.
8
Status display/diagnostics
8.1 Status display via LEDs
PS (power system) – X1 (I-port)
LED indicator
PS
X1
Fig. 7
AS-i (AS-interface)
LED
Status and significance
indicator
LED illuminated green:
– AS-interface voltage applied
– no error is present.
LED is off:
– AS-Interface voltage not applied
LED illuminated red:
– AS-interface address not set (equals 0)
– no communication
LED flashes red/green:
– peripheral fault (e.g. no additional voltage, no I-port)
Fig. 8
2
Note
OFF
AS-interface has an integrated watchdog function, which can be activated/deac-
tivated via the parameter bit P0.
Valid is:
– P0 = 1
Watchdog activated (delivery status)
OFF
– P0 = 0
Watchdog deactivated
If Watchdog is activated, the outputs are reset as soon as bus communication
ON
malfunctions.
8.2 Error diagnostics via AS-interface bus
ON
AS-interface
parameter-entry bits
P3
P2
P1
P0
1
1
0
1
0
1
0
1
1
1
0
0
Fig. 9
Status and significance
Both LEDs light green:
– additional voltage present
LED "PS" lights green, LED "X1" flashes green
– additional voltage present
– short circuit at a solenoid coil or other diagnosis of the I-port device
(peripheral area)
Both LEDs flash green:
– additional voltage missing
LED "PS" lights green, LED "X1" flashes red:
– additional voltage present
– no I-port device detected
– peripheral faults
LED "PS" illuminated green, LED "X1" illuminated red:
– additional voltage present
– short circuit/overload behind the AS-interface coil
– peripheral error, I-port connection interrupted
Faults
short circuit/overload behind the AS-interface coil
no additional voltage
no I-port device found
short circuit at a solenoid coil

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