IFEA Industriell kommunikasjon
AS-i Training
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Agenda
• AS-i safety basics
• Safety Output
• ASIMON 3G2
• Current Devices
• Troubleshooting Safety
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AS-i Safety at Work
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Safety at work - Headlines
• Integration of all binary safety-related components in
AS-Interface, such as:
–
–
–
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Emergency stop
Protective door switch
Safety light barriers/grids
Contactor controls, etc.
• Mixed operation of standard and safety-related
components via the yellow AS-Interface cable
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Features of the system
• Can be used up to control category 4 / PLe / SIL 3
• Response time max. 40 ms
• Safe data transmission approved by BIA1 and TÜV2
• Full compatibility with all other AS-Interface components
according to EN 50 295 and IEC 62026-2
• Use of the standard AS-Interface protocol
• Maximum extension of the system with 31 safety slaves
• Stop category 0 or 1 can be selected
BIA¹: Berufsgenossenschaftliches Institut für Arbeitssicherheit
TÜV²: Technischer Überwachungsverein
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Programming with ASIMON
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Example AS-i safety at work network
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Function of the safety slaves
•
Each slave has a specific 8 * 4 bit code table
•
Through a “teach-in“ function the safety monitor reads in the code
tables of all safety slaves
•
During operation permanent comparison of the expected and the
transmitted code tables takes place
•
The system is switched off by the safety monitor when the expected
code ≠ the transmitted code, i.e. when:





A stop is called (0000)
Communication is interrupted
The transmitted sequences are wrong
The safety slave is disrupted
Slave responses are missing or disrupted
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Transmission of the safe data
Safety unit
Master sends request to the slave
Safety slave
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Transmission of the safe data
Safety unit
0101
010100111010101011010011101011011
Slave answers with his safe code sequence
Safety slave
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Transmission of the safe data
Bit
3 2 1 0
3 2 1 0
3 2 1 0
3 2 1 0
1st transmission
0 1 0 1
0 0 0 1
0 1 0 0
0 0 0 0
2nd transmission
0 0 1 1
0 0 1 1
0 0 0 0
0 0 0 0
3rd transmission
0 1 0 1
0 0 0 1
0 1 0 0
0 0 0 0
4th transmission
0 1 0 1
0 0 0 1
0 1 0 0
0 0 0 0
5th transmission
1 0 1 0
0 0 1 0
1 0 0 0
0 0 0 0
6th transmission
0 1 1 1
0 0 1 1
0 1 0 0
0 0 0 0
7th transmission
0 1 0 1
0 0 0 1
0 1 0 0
0 0 0 0
8th transmission
1 0 1 1
0 0 1 1
1 0 0 0
0 0 0 0
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Evaluation of the safe data
Code
Table
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Sequences
transmited
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Function of the safe output
1 safety
relay output
Safety address
Diagnosis +
1 input (EDM)
AB-Slave
AS-i Training
AS-i relay output
module with standard 4 inputs
Safety address
+ AB slave
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Function of the safe output
•
A safe output needs a safe address and a A/B-address
•
The voltage supply is made completely out of AS-i
•
The safety unit sends a 7 x 4 code sequence as answer to the master
request – the safe output „hears“ this code sequence and compares
it with the intern code sequence and switches correspondingly
•
Several outputs can have the same safe address but never the same
unsafe address
•
The unsafe address is used for the transmission of diagnosis data is
transmitted or for switching the safe output (after validation by the
safety logic)
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Function of the safe output
Safe
output slave
Safety unit
Master sends request
•
Safety unit answers with safe code sequence
The safe output slave compares the code sequence (that depends
from the slave address) and switches correspondingly
 that means it is possible to have several safe output slaves on
the same safe address
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Functions ASIMON 3.0 G2
• New graphical display
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–
–
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–
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Preprocessing is not necessary anymore
Very clear view similar to a circuit diagram
„Old“ view can be selected if needed
Each OSSD is displayed in its own window
Project manager, component manager & device library
SafeLink
It is easier to create, understand and diagnose the
programs
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Functions ASIMON 3.0 G2
• Further important innovations
– It is possible to define user devices
– Integration of the AS-i Control Tools in the ASIMONSoftware
– Print functionality
– Support of safety outputs
– Support of coupling slaves
– Support of up to 32 OSSD
– Great improvement of the handling (Copy + Paste etc.)
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Functions ASIMON 3.0 G2
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Functions ASIMON 3.0 G2
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Functions ASIMON 3.0 G2
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Functions ASIMON 3.0 G2
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Functions ASIMON 3.0 G2
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Functions ASIMON 3.0 G2
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Small systems
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Middle sized systems
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Large systems
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Device diagnosis
• Diagnosis in plain text at the display
– It is possible to obtain an improved diagnosis directly via the
display even without programming it
– Specialties as e.g. duplicate AS-i address detector, AS-i earth
fault detector and AS-i noise detector are already integrated
– The current status of the safety components
can be displayed as well as the switch off history
 A complete diagnosis is available without
further programming
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Device diagnosis
1.24
TEST! : SAFETY GUARD1
1 +F YELLOW
6 +RED
10 +RED
DIAGNOSE
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Device chip card
• Chip card for storage integrated in the device
– Storage of up to 4 different programs
– Very simple change in the functionality possible by only changing
the chip card (PC is not required)
– If you replace the device you will only have to insert the chip
card into the new device
– Operation is also possible without chip card
 In case of failure the downtime is reduced
drastically
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Replacing AS-i safety components
• Replacing a safety AS-i slave
• Teaching individual AS-i slaves’ code sequences
• Replacing the monitors
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Replacing a safety slave
• Disconnect the defective slave from the AS-i circuit
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Replacing a safety slave
• Press the „ESC Service“ button for 3 seconds
ESC
Service
3s
SLAVE 24 TO
BE CONNECTED
THEN PRESS
SERVICE LONG
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Replacing a safety slave
• Connect the new safety slave (either with the address 0
or with the correct address of the defective slave)
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Replacing a safety slave
• Press the „ESC Service“ button again for 3 seconds
ESC
Service
3s
TEACHING CODES
SLAVE ADR. 24
RX
ESC
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Replacing a safety slave
• Close the contacts at the new slave
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Teaching the code sequences
PROFIBUS
QUICK SETUP
AS-I
AS-I SAFETY
SAFETY
DIAGNOSIS
OK
TEACH SAFETY
SAFETY
TEACH
SAFE OUTPUT CH
SAFE COUPLING
START / STOP
OK
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Teaching the code sequences
TEACH CODES
COMPLETE
COMPLETE
SINGLE SLAVE
COUPLING SLAVE
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Replacing a monitor
• Disconnect the defective monitor from the power supply
and remove it from the AS-i circuit
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• Remove the chip card from the defective monitor and
insert it into the new monitor
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Replacing a monitor
• Connect the new monitor to the power supply
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Replacing a monitor
• To copy a configuration you have to insert the code to
validate it
COPY BANK A
TO MONITOR
COMPLETE
CONFIGURATION:
D307
TYPE CODE?
D307
OK
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SET
OK
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Replacing a monitor
• Restart the monitor and check the safety installation
START MONITOR
OK
OK
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