IFM AC2488 User manual

Operating instructions
AS-i CompactModule M8
AC2488
AC2489
7390940/04 10/2018
UK

2
1 Preliminary note
Technical data, approvals, accessories and further information at
www.ifm.com.
1.1 Safety instructions
• Read this document before setting up the product and keep it during the entire
service life.
• The product must be suitable for the corresponding applications and
environmental conditions without any restrictions.
• Only use the product for its intended purpose (→ Functions and features).
• If the operating instructions or the technical data are not adhered to, personal
injury and/or damage to property may occur.
• The manufacturer assumes no liability or warranty for any consequences
caused by tampering with the product or incorrect use by the operator.
• Installation, electrical connection, set-up, operation and maintenance of the
product must be carried out by qualified personnel authorised by the machine
operator.
• The plant manufacturer is responsible for the safety of the plant in which the
device is installed.
• If the device is used in a way that is not intended by the manufacturer, the
protection supported by the device may be impaired.
• Protect units and cables against damage.
1.2 Symbols used
► Instructions
> Reaction, result
Important note
Non-compliance may result in malfunction or interference.
Information
Supplementary note

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2 Functions and features
• AC2488: 8 inputs CTT3 (AS-i profile S-7.A.A) / AS-interface version 3.0 /
master profile M4 / extended addressing mode: yes / maximum number of
modules per master: 62
• AC2489: 2x4 inputs (AS-i profile 2x S-0.A.E) / AS-interface version 3.0,
backwards compatible / master profile M3 or M4 / extended address mode:
yes / maximum number of modules per master: 31 (2 independent A/B slaves
per module)
3 Installation
► Disconnect power before installation.
► For installation choose a flat mounting surface.
The entire bottom of the module must lie flat on the mounting surface.
► Fix the module onto the mounting surface using M4 screws and washers.
4 Electrical connection
The unit must be connected by a qualified electrician.
The national and international regulations for the installation of electrical equipment
must be adhered to.
► Disconnect the installation from power and connect the unit.
To ensure the protection rating:
► Connect the plugs of the sensors to the M8 sockets.
► Tighten firmly, recommended tightening torque 0.3...0.5 Nm.
► Cover the unused sockets with the enclosed protective caps.
► Tighten firmly, recommended tightening torque 0.3...0.5 Nm.

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4.1 Pin connection
M12 connector
1: AS-i +
3: AS-i -
Input M8
1: Sensor supply +
3: Sensor supply -
4: Data input
Parameter bit Designation Description
P1 Periphery fault 1 periphery fault indication active
0 periphery fault indication not active
In the AS-i network the AC2489 module functions like 2 independent A/B slaves.
5 Addressing
► Addressing the unit via the M12 connector (AS-i); the address is set to 0 at the
factory.
AC1154 addressing unit
Wiring of the addressing socket
51
34
2
1: AS-i + / 2: TTL → / 3: AS-i -
4: TTL ← / 5: + 5 V
5.1 Addressing the AC2489 module
In the factory setting, initially only the first slave gives a signal on address 0. It can
be addressed to any address between 1A...31B.
If this slave is addressed, the second slave with the address 0 appears
automatically in the display. Now this slave can be addressed to any address
between 1A...31B.
Both slaves can be assigned any A/B addresses (e.g. 3A/6A or 9A/25B....).
No address can be assigned twice (e.g. 3A/3A or 9B/9B).
If a slave with the ID code "A" (extended address mode possible) is used in
combination with a master of the 1st generation (version 2.0),
- the parameter P3 must be 1 and the output bit D3 must be 0.* The output bit
D3 must not be used.
- an address between 1A and 31A must be assigned to this slave.
* default setting

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5.1.1 Restore the factory setting (address both slaves to 0) to AC2489
Recommendation:
Use the addressing unit AC1154 to restore the factory settings.
When AS-i masters are used and „automatic addressing“ is activated restoring the
factory settings is reversed.
Using the addressing unit AC1154 the factory settings of the module are restored
by writing a 0 to ID1 of the second slave (factory setting ID1 = 2).
When the factory settings are restored via the AC1154 the status message [F3] is
displayed.
► Press mode button once to close the status message.
► Operating mode ID2 appears.
► Then press the mode button as long as the addressing mode ADDR is visible
to display the factory settings (address 0).
6 Settings
The AC2488 module occupies only one slave address. The data of the module is
in the analogue range.
6.1 Data bits and value range CTT3 in the M4 Controllere and
AC14xx to AC2488
binary IN1 (D0)
binary IN2 (D1)
binary IN3 (D2)
binary IN4 (D3)
binary IN5 (D4)
binary IN6 (D5)
binary IN7 (D6)
binary IN8 (D7)
analogue IN 1 D7...D0 (byte 1) byte 0
analogue IN 2 byte 3 byte 2
analogue IN 3 D7...D0 (byte 5) byte 4
analogue IN 4 byte 7 byte 6
slave address 2A
slave address 2B

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6.1.1 Display of the M4 Controllere and AC14xx to AC2488
Display (hex.) in the menu
[Slave Info] of the M4 Controllere
Display (dec.) in case of AC14xx units
I-1 0x100 256
I-2 0x200 512
I-3 0x400 1024
I-4 0x800 2048
I-5 0x1000 4096
I-6 0x2000 8192
I-7 0x4000 16384
I-8 0x8000 32768
6.1.2 Display in a higher-level controller (e.g. Siemens) for AC2488
Example: Slave 2A, inputs I-5 and I-8 switched
Channel 1 (input word 1) 1001 000 Byte 1 (Byte 0)
Channel 2 (input word 2) (Byte 3) (Byte 2)
Channel 3 (input word 3) (Byte 5) (Byte 4)
Channel 4 (input word 4) (Byte 7) (Byte 6)
Example: Slave 2B, inputs I-5 and I-8 switched
Channel 1 (input word 1) (Byte 1) (Byte 0)
Channel 2 (input word 2) (Byte 3) (Byte 2)
Channel 3 (input word 3) 1001 000 Byte 5 (Byte 4)
Channel 4 (input word 4) (Byte 7) (Byte 6)

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6.2 Data bits AC2489
Data bit D0 D1 D2 D3
Input 1 2 3 4
Socket I-1 I-2 I-3 I-4
Pin 4 4 4 4
7 Operating and display elements
M12x1
M8x1
LEDs I-x LED
PWR
LED
FAULT
8 Operation
LED I-x yellow: Input switched
LED PWR green: AS-i voltage supply OK
LED FAULT red lights: AS-i communication error, slave does not participate
in the "normal" exchange of data, e.g. slave address
0
LED FAULT red flashes: Periphery fault, e.g. sensor supply overloaded or
shorted, is signalled to the AS-i master (version 2.1
or higher).