10. io-link technology - russell smith
TRANSCRIPT
Russell Smith
Balluff Limited
IO-Link Technology
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what is IO-link?
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not another bus system!
point to point communications protocol from the fieldbus to the sensor and actuator level.
up
to
20
M
Pulse-width modulated 24V
Baud rates: 4.8 kBit/s (COM1), 38.4 kBit/s (COM2), 230,4 kBits/s (COM3)
Pin Signal Description
1 L + 24 Volt
2
3 L - 0 Volt
4 C / Q IO-Link
communication
+ switching signal
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an open standard
standard - IEC 61131-9
network neutral
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IO-Link system basic components:
IO-Link master … acts as a gateway between the IO-Link device and the higher level communication
system, such as a fieldbus (Profinet, EtherNet/IP, etc.) or a device-specific backplane bus.
IO-Link device … is the field device with communication capability: sensors, switching
devices, valve terminals, RFID devices, indicator lights, etc.
3-core unshielded standard cable – up to 20M long … is the standard interface between IO-Link master and device
IODD and engineering tool
… are used to configure and assign parameters to the IO-Link system and devices.
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IO-Link devices
many different IO-Link devices are available.
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IO-Link masters
panel
mounted unit
with terminals
IP67 field I/O
module
additional slice on existing PLC
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why IO-Link?
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easier handling of measurement devices
lower cost – no analogue card
lower cost vs IE networked device
less wiring effort
traditionally
better
best
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low cost per I/O point – 496 I/O on one IP address
low cost
high density
less addresses
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extensive diagnostics
available on sensors/devices and sensor hubs
troubleshoot problems quickly
maximise up-time
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extensive diagnostics
Short circuit – LED for each I/O port
Short circuit does not impair the unit
Sensor/actuator under voltage LED for each I/O port
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simplify valve manifold wiring
reduced installation time
reduced cost
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IO-Link safety
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extends communication
ERP
MES
SCADA
PLC
Network
Sensors and Actuators
Enterprise Level
Control Level
Management Level
Plant Control Level
Field Level
Sensor / Actuator Level
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HMI
parameterisation – std pressure sensor
HMI
HMI HMI HMI HMI
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parameterisation – std pressure sensor
Time consuming configuration of 10 – 15 Parameter. (e.g. upper/lower Pressure point, Hysteresis, Time – or Pressure window)
Machine Tools have often more than 10 Pressure sensors
Error prone due to manual entry
Very bad when Sensor failure / Sensor exchange (especially during night shift)
Manual
configuration
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parameterisation – std pressure sensor
HMI
HMI
HMI
HMI
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HMI integrated in sensor for set up means additional cost.
Expensive high-pressure hydraulic
hoses
parameterisation – std pressure sensor
machine tool
Additional cost for protective housing for sensors in the machine
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parameterisation – pressure sensor with IO-Link
E.g. machine tool
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PLC
Function-
blocks
Vendor_ID
Device_ID
Param1: 50bar
Param2: 100bar
Param3: 200ms
Step 1
Identify device
Step 3
Get Parameter Set
Step 2
Check identity
Step 4
Write Parameter
Set
parameterisation – pressure sensor with IO-Link
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parameterisation – pressure sensor with IO-Link
sensor installed at point of measurement
no expensive measurement cables - use std un-shielded 3-wire standard cables
no protection case
no sensors with HMI but reliable parameterisation via controller and HMI of the machine
decentralised diagnostics for sensors
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parameter server
IO-Link V1.1 master
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automated tool changes
IO-Link inductive couplers for non-contact signal transmission
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an i4.0 enabler
ERP
MES
SCADA
PLC
Network
Sensors and Actuators
Enterprise Level
Control Level
Management Level
Plant Control Level
Field Level
Sensor / Actuator Level
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unabated IO-Link success!
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how IO-Link?
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connect the master to the PLC and install the GSDML file drag and drop the relevant file and make the PROFINET connection from the PLC to the master in TIA Portal
IO-Link master configuration
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IO-Link master configuration
Drag the appropriate (process data length) IOL input / output byte from the catalogue and name & address the module
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device configuration from PLC or using parameter server
1. controller parameter storage – parameterisation from the PLC using the function block
2. IO-Link master ver 1.1 parameter server
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device configuration with USB master or webserver
3. Laptop via USB master (PROFIBUS) or Ethernet using Device Manager software
4. webserver entry with IO-Link master
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device configuration with Device Manager
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device configuration with Device Manager
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device configuration with integrated web server
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device configuration with integrated web server
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device configuration - manual
Manual
configuration
5. Manual configuration
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THANKS FOR LISTENING!
Russell Smith
Product Marketing Manager Industrial Networking
+44 (0)777 331 7984
www.linkedin.com/in/russellsmithindustrymanager