General Remarks; General Instructions - Festo CTEU-DN Manual Del Usaurio

Universal bus node
CTEU-DN
Description Festo AG & Co. KG
Installation and interfaces Postfach
D-73726 Esslingen
Bus node, type CTEU-DN +49/711/347-0
DeviceNet fieldbus protocol www.festo.com
Original: de
P.BE-CTEU-DN-INSTALL-ML
756452 en 1108NH
1 Installation

1.1 General remarks

This description contains information for mounting the
Bus node on a suitable device (e.g. valve terminal) from
Festo and for installation of this combination in a higher-
level control system.
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This description is part I of the total product document-
ation on the bus node. Information on commissioning,
diagnostics and error elimination of the Bus node can
be found in part II, the description "Universal bus node
CTEU-DN – function and maintenance" in the Internet
under www.festo.com Support portal
documentation.
Further Information on DeviceNet can be found in the
Internet www.odva.org.

1.2 General instructions

The bus node type CTEU-DN documented in this descrip-
tion manual has been designed exclusively for use as a
slave on the DeviceNet fieldbus. It may only be used in its
original status without unauthorised modifications and
only in perfect technical condition.
The bus node is intended for use in industrial areas. Out-
side of industrial environments, e.g. in commercial and
mixed residential areas, actions to suppress interference
may have to be taken.
The target group for this description consists of trained
specialists in control and automation technology who
have experience with installation of stations on the
DeviceNet fieldbus.
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Danger of injury through uncontrolled movements of
connected equipment.
Make sure that electrical and pneumatic equipment are
in a de-energised and pressureless state.
Before working on the pneumatic components:
• Switch off compressed air supply
• Exhaust valve terminal
Before working on the electrical equipment, e.g. before
installation or maintenance work:
• Switch off power supply
In this way, you can avoid:
– uncontrolled movements of loose tubing.
– unexpected and uncontrolled movements of the con-
nected actuators
– undefined switching states of the electronic compon-
ents
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The bus node contains electrostatically sensitive
devices.
• Do not touch any electrical or electronic components.
• Observe the handling specifications for electrostatic
sensitive devices.
They will help you avoid damage to the electronics.
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Use protective caps or blanking plugs to seal unused
connections. You will then comply with protection class
IP65/IP67.
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® ® ®
CAN , DeviceNet and TORX are registered trade-
marks of the respective trademark owners in certain
countries.
Bus node, type CTEU-DN
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1.3 Mounting
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Information on mounting the bus node on the decent-
ralised electrical connection box type CAPC-... can be
found in the assembly instructions that accompany the
sub-base.
For H-rail mounting, you also need the mounting kit
CAFM-... (CAPC and CAFM).
For mounting the bus node, a valve terminal from Festo or
an adapter with I-port interface is required.
1.Inspect the seals and sealing surfaces on bus node and
valve terminal.
2.Plug the bus node onto the valve terminal in the right
position and without tilting.
3.At first, lightly screw in the three self-tapping screws
with a TORX screwdriver (size T10): Use available
threads, if applicable.
4.Tighten the screws with 1.0 Nm.
2 Connection and display components
The following electrical connection and display elements
can be found on the bus node:
1 2
5
1
DIL switch 1 ( chap. 5)
Note
2
DIL switch 2 ( chap. 5)
3
Status LEDs:
Bus status LEDs, CTEU-specific LEDs;
Status display and diagnostics (
4
Power supply connection for bus node and connected
devices, if applicable, e.g. valve terminal (
User
M12, 5-pin, B-coded, pin plug connector
5
Fieldbus connection (fieldbus interface):
D-sub, 9-pin, pin plug connector, DE-9 (
3 Power supply
The bus node has separate operation and load voltage
supplies. The bus node also supplies voltage to equip-
ment connected via the I-port interface.
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• Use only PELV (protective extra-low voltage) circuits
as per EN 60204-1 for the electric power supply.
• Observe also the general requirements for PELV
power circuits as per EN 60204-1.
• Use only voltage sources which guarantee reliable
electrical isolation of the operating voltage as per
EN 60204-1.
• Always connect both circuits for operating and load
voltage supply.
Warning
Through the use of PELV circuits, protection against elec-
tric shock (protection against direct and indirect contact)
is guaranteed in accordance with EN 60204-1.
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Fieldbus stations of different manufacturers have dif-
ferent tolerances regarding the power supply to the
bus (V+, also designated as CAN_V+ or CAN+).
– Tolerance range of the power supply to the bus of the
fieldbus interface CTEU-DN:
11 ... 30 V DC, polarity-safe
Observe this fact when placing the power supply unit
and designing the fieldbus length.
Power supply connection Pin
(M12, B-coded)
1
2
1
4
Note 5
3
2
3
4
5
1)
Connection to functional earth must be secured over the
connected device of the electrical connection box CAPC-...
For the connection to power supply units or the power
supply, use cables with M12 coupling (socket plug
connector), B-coded, in accordance with IEC 61076-2
Note
( accessories www.festo.com/catalogue).
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Functional test:
– The LED PS is illuminated green when the power
Note
supply is present at both circuits.
– The LEDs X1 or X2 are lit green when a device is
connected ( chap. 6).
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4 Connecting the fieldbus
Note
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Faulty installation or high transmission rates may cause
data transmission errors as a result of signal reflections
and attenuations.
• Always use a terminating resistor (121 Ω ± 1%,
0.25 W) at both ends of the fieldbus between the
wires for CAN_H and CAN_L.
• Connect the screening continuously to all fieldbus
cables and earth the screening only once (star-
shaped) to avoid ground loops.
• Observe the specifications in the manuals of your
control system, in particular regarding the bus lines,
cable type, max. length of branch lines and branches
as well as the connection technology (network plug,
adapter).
• In calculating the max. effective data rate, also take
into account the length of branch lines and branches
( section 5.2 Note on the maximum data rate/
baud rate).
Sub-D plug connector at the bus node
There is a 9-pin sub-D pin plug connector (DE-9) on the
bus node for connection to the fieldbus.
3
Fieldbus connection (fieldbus interface; sub-D, DE-9)
Pin Allocation Typical
(bus signal) wire colour
4
9 6
5 1
1 n.c. n.a.
2 CAN_L Blue
chap. 6)
3 V – Black
("CAN_GND")
chap. 3);
4 n.c. n.a.
5 Drain Screening,
("CAN_SHLD") housing
chap. 4)
6 GND n.a.
CAN_H
7 White
8 n.c. n.a.
9 V + Red
("CAN_V+")
1)
Received/transmitted data
2)
The bus power supply is not used by the bus node, but is
Note
required for the correct functioning of the DeviceNet bus system
3)
Also connect screening to the plug connector housing
4)
Optional; the ground connection is not used
Cable specification
For fieldbus communication, Festo recommends the use
of a two-pair, screened cable.
• You need at least a screened 4-wire line
(CAN_H/CAN_L as well as V +/V –).
• Preferably use cable with twisted and screened wire
pairs.
• Connect the screening of the fieldbus cable to the
fieldbus plug.
• Make sure that the connected fieldbus equipment or
the decentralised adapter is earthed.
Connection technology
Note
With fieldbus plugs or fieldbus adapters from Festo
( subsequent table), you can separate the fieldbus
connection from the bus node without interrupting the
communication of the remaining fieldbus stations.
Fieldbus adapter (bus connection/plug-adapter) for
continued fieldbus communication
You can use the following fieldbus adapters for forward-
ing the fieldbus connection.
Allocation
24 V (PS)
EL/SEN
24 V (PL)
VAL/OUT
0 V (PS)
EL/SEN
0 V (PL)
VAL/OUT
1)
FE
Note
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Fieldbus adapter
Bus connection,
Note
1)
Type FBA-2-M12-5POL
2 2
3 1 1
5
4 4
Bus IN
Bus OUT
1)
Bus connection,
type FBA-1-SL-5POL with
2)
type FBSD-KL-2X5POL
1 2 3 4 5
Fieldbus adapter,
3)
type FBA-CO-SUB-9-M12
Fieldbus adapter,
type
Signal description
FBS-SUB-9-BU-2x5POL-B
1)
Protective cap or plug with bus termination resistor required if
connection remains unused
2)
Use cables with a minimum cross-section of 0.34 mm
3)
If standard plugs D-sub are used in IP20: Connecting screws with
UNC female thread required for mounting (type UNC 4-40/M3x6)
5 Basic setting for fieldbus communication
5.1 Removal of the DIL switch cover
Not connected
To set the DIL switches, you must remove the cover:
DeviceNet bus low
1) 1.Switch off the power supply.
(CAN bus low)
2.Unscrew the two mounting screws of the transparent
Power supply to bus (0 V),
2)
cover and remove the cover.
connected with pin 6
Not connected
5.2 Setting the DIL switches
Screening (shield), func-
Proceed as follows:
3)
tional earth (FE)
1.Assign to the bus node a station number that has not
Ground, connected to
4) been allocated yet
pin 3
examples.
DeviceNet bus high
1)
(CAN bus high)
Adjustment examples
Not connected
for setting the binary-coded station numbers through DIL
Power supply for bus
2) switch group 1 see following table "DIL switches":
(24 V DC)
Example 1:
Station number 05
1 2 3 4 5 6
1)
DIL switch
1
DIL switch group 1
1
1 ... 6: DeviceNet address (station number), 0 ... 63,
binary-coded (factory setting: 63)
DIL switch group 2
2
1 ... 2: reserved (OFF)
3
3 ... 4: Data rate/
2)
baud rate
4
5: Diagnostics
5
6: Fail-state and
3)
idle mode
1)
Switch setting "ON", switch is to the left or on top
Switch setting "OFF", switch is to the right or underneath
2)
Factory setting: 125 kBaud
3)
If the PLC is in the stop-mode (idle mode) or the fieldbus
connection is interrupted (fail state); applies for all outputs
Note: The fail-state mode is designated "fail-safe mode"
en
Pin Allocation
1 Functional earth FE
2 Power supply for bus
(24 V DC)
3
5
3 Power supply for bus (0 V)
4 CAN_H
5 CAN_L
1 Power supply for bus (0 V)
CAN_L
2
3 Functional earth FE
4 CAN_H
5 Power supply for bus
(24 V DC)
Assembly instructions
FBA-CO-SUB-9-M12
Assembly instructions
FBS-SUB-9-BU-2x5POL-B
2
see subsequent adjustment
Example 2:
Station number 38
1 2 3 4 5 6
1 1
Function
ON OFF
2 3 4 5
4 4
Reserved 500 kBaud
3
3
DIL 2.4: ON DIL 2.4: ON
DIL 2.3: ON DIL 2.3: OFF
4
4
250 kBaud 125 kBaud
3 3
DIL 2.4: OFF DIL 2.4: OFF
DIL 2.3: ON DIL 2.3: OFF
Diagnostics Access to
activated: Diagnostics only
Transmission of through explicit
diagnostic inform- messaging
ation in the (factory setting)
process data
Hold last state Reset
(factory setting)