IFM Electronic AC1154 Operating Instructions Manual

Operating instructions
Addressing unit
AC1154
704749 / 00 02 / 2010
UK
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1 Functions and features ����������������������������������������������������������������������������������������3
2 Safety instructions �����������������������������������������������������������������������������������������������3
3 Introduction to the AS-interface version 2�1 ��������������������������������������������������������3
4 Structure of the addressing unit ��������������������������������������������������������������������������4
5 Operating modes �������������������������������������������������������������������������������������������������7
6 Addressing mode �������������������������������������������������������������������������������������������������8
6�1 Addressing of slaves with IR interface ���������������������������������������������������������10 6�2 Other operating modes �������������������������������������������������������������������������������� 11 6�3 Read ID code or ID code 2 ������������������������������������������������������������������������� 11 6�4 Read and write ID code 1 ��������������������������������������������������������������������������� 11 6�5 Read IO code ���������������������������������������������������������������������������������������������12 6�6 Read and write data �����������������������������������������������������������������������������������12 6�7 Display and write parameters ���������������������������������������������������������������������12 6�8 Indication of the peripheral fault flag �����������������������������������������������������������13
7 Error messages �������������������������������������������������������������������������������������������������14
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Functions and features1
The protection of operating personnel and system against possible danger is not guaranteed if the sub-assembly is not operated in accordance with its intended use�
The unit must be operated by qualified staff in accordance with these operating instructions�
Safety and correct functioning of the unit and connected systems cannot be guaranteed if operated in any way other than that described in these operating instructions�
No external voltage must be applied to the addressing socket� Pin connection Pin 1: AS-i+, Pin 3: AS-i-� Use of the pins 2 and 4 is only permitted in conjunction with the E70211 infrared addressing adapter� Any other use of the socket leads to the destruction of the unit!
Safety instructions2
The connection of the unit and any maintenance work to be carried out while voltage is applied must be performed by qualified staff�
If a failure cannot be removed, the unit must be taken out of operation and mea­sures be taken to avoid that it is inadvertently put back into operation�
Repair work must be carried out by the manufacturer only� Tampering with or modifications to the unit are not allowed and void the warranty�
The responsibility for the adherence to local safety standards lies with the opera­tor�
Introduction to the AS-interface version 2.1 3
The functionality of AS-interface has been expanded to support the operation of up to 62 AS-interface slaves on one line� Moreover, the transmission of analogue values with AS-interface version 2�1 and higher is as simple as the transmission of binary values�
For the addressing unit described in these operating instructions, only the extensi­on to 62 slaves is relevant and described below�
For using the extension it is important that both the slaves and the master support AS-interface version 2�1�
AS-interface provides 5 bits for the address in the master request message�
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This is sufficient to address 32 slaves� In normal operation, address 0 is not per­mitted, thus allowing 31 AS-i slaves to be operated� The address range is doubled by using the data bit D3 as sixth bit for addressing, which enables the addressing of 62 slaves�
For reasons of compatibility the message structure has not been changed� Using the identification code, the master detects whether or not version 2�1 is
supported (ID code = 0A hex )� If it is a version 2�1 AS-interface slave, this slave receives two additional identification codes (ID1 and ID2) which describe the functionality of the slave� A special feature of these additional ID codes is that the ID1 code can be written by the user�
If automatic addressing is used, these additional ID codes are also read and com­pared to those of the faulty slave�
Address 0 is only changed to the address of the faulty slave if all ID codes of the new slave correspond to those of the old slave�
AS-interface slaves which do not support version 2�1 can be used together with AS-interface slaves which support version 2�1�
The addressing unit enables the writing of identification code ID1� If the ID code ID1 is changed by the user and automatic addressing is used, ensure that the correct ID code 1 was stored in the slave before installing the new slave�
With version 2�1 AS-i slaves, data bit D3 of the output data is used to differentiate between A and B slaves� A version 2�1 AS-interface slave thus supports 4 bits of input data and 3 bits of output data� When fully expanded, up to 248 bits of input data and 186 bits of output data are available�
As of version 2�1, an address can be assigned twice, e�g� address 15A and 15B� This means that the data for slave 15A is written and read in the first cycle and the data for slave 15B in the following cycle, followed again by slave 15A� This increases the cycle time for slaves A and B to maximum 10 ms� The cycle time of conventional slaves remains unchanged as these are scanned in every cycle�
If an AS-interface slave is used which does not support version 2�1, an address may be assigned only once�
Structure of the addressing unit 4
The battery for AC1154 is charged when delivered� It is, however, possible that the battery charge is inadequate due to long storage times and self-discharge� This is indicated by a battery symbol on the display� If this symbol is displayed, the
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addressing unit needs to be recharged with the battery charger supplied with the unit�
The structure of the AC1154 addressing unit is shown in the following figure:
adapter for the connection of AS-interface slaves1: LC display2: control panel 3: Write/Set4: Read/On5: MODE6:
The adapter is used to connect the AS-interface slave to the addressing unit� Most AS-interface slaves can be connected directly to the adapter without any accessories�
These include, among others, AS-interface slaves with M12 screw connections� All AS-interface slaves with 2�5 or 3�5 mm Cinch addressing socket can be program­med using the E70213 addressing cable�
Like some AS-interface slaves the addressing unit is supplied with an infrared in­terface which can also be used to establish the connection to AS-interface slaves (IR addressing adapter E70211)�
A slave with a higher current consumption than provided by the addressing unit can be powered by an external AS-i power supply�
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