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AS-i Counter Module
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See also:
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A/B inputs
Profile 7.3 ,Plug and Play"
as simple as digital AS-i I/O
High protection category IP65
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Article no. BWU2218: Counter Module 2-channel input
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Article no. BWU2219: Counter Module 2 x 2-channel input
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Article no. BWU2189: Counter Module 4 x 2-channel input
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The AS-i Counter Module has inputs for standard sensors (24 V, pnp, push-pull). The module counts the impulses with the two channels (BWU2218), twice two channels (BWU2219) or 4 x two channels (BWU2189) up- and downwards and outputs the result as 16 bit value (-32768 ... 32767) via AS-i. The start value is -30768.
With the help of parameters the module can be set to zero as well as the counting direction can be defined. Es stehen verschiedene Different pre-divisors are available, which can be select via AS-i parameters as well.
As long as the AS-i parameter for setting zero is set the counting is stopped. After the setting to zero of the counting value a pre-divisor or the AS-i parameter for no pre-divisor must be adjusted again.
The module reports a peripheral fault at counter overflow (underflow).
Programming (Bit-setting of AS-i parameters)
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BWU2218
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Bit P0
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Parameter
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Bit P1
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Parameter
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Bit P3
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Bit P2
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Parameter
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1
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count upwards In 1
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1
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counter In 1
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1
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1
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no pre-divisor
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0
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count downwards In 1
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0
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set zero In 1
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1
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0
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pre-divisor = 2
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0
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1
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pre-divisor = 8
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0
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0
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pre-divisor = 32
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BWU2219
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Bit P0
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Parameter
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Bit P1
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Parameter
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Bit P2
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Parameter
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Bit P3
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Parameter
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1
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count upwards In 1
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1
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counter In 1
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1
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count upwards In 2
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1
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counter In 2
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0
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count downwards In 1
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0
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set zero In 1
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0
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count downwards In 2
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0
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set zero In 2
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Start value:
At power-up, all the counter with 0x87D0 (-30768) are initialized to indicate that there is no zero-setting.
Accessories:
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AS-i substructure module to connect 2 AS-i flat cables (article no. BW1180)
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AS-i substructure module to connect 1 AS-i flat cable, 1 flat cable for additional supply (article no. BW1181)
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AS-i substructure module to connect 2 AS-i round cable (article no. BW1182)
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AS-i substructure module to connect 1 AS-i round cable, 1 round cable for additional supply (article no. BW1183)
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AS-i substructure module to connect 2 AS-i flat cables with addressing socket (article no. BW1438)
Bihl+Wiedemann GmbH
Floßwörthstr. 41
D-68199 Mannheim
Phone: (+49) 621 / 339 96-0
Fax: (+49) 621 / 339 22 39
eMail: mail@bihl-wiedemann.de
Internet: http://www.bihl-wiedemann.de
