WAGO 750-404 Manual
Also see for I/O-SYSTEM 750: ManualManualTechnical descriptionUser's installation and configurationManual
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40 • 750-404/000-003 [Frequency Counter 0.1 Hz-100 kHz]ExampleWAGO-I/O-SYSTEM 750I/O ModulesAttentionThe range of the watchdog timer stretches from 0 to 16383ms (0x0000 to0x3FFF) in steps of 1ms per digit. Values which raise the permitted range ofthe watchdog timer are masked with 0x3FFF.Set Outputs:Bits 2 and 3 set the additional two outputs of the counter module.2.1.4.8 ExampleChanging the Method of Measurement, Frequency and Representation:The frequency counter is set to a measurement range of 1 Hz ... 100 kHz witha resolution of 1/10 Hz and 16 measurement periods.14.Set the new measurement range with the bits 0 and 1 (RANGE_SEL REQ0 and 1) in the control byte.Control byteOutput bit B7 B6 B5 B4 B3 B2 B1 B0Value 0 X X X X X 0 115.Wait for the feedback from the counter module in the status byte, bit 0 and1 (RANGE_SEL ACK 1 and 0). The status byte has the following bits:Status byteInput bit B7 B6 B5 B4 B3 B2 B1 B0Value X X X X X X 0 116.After the expiration of the delay the current frequency value with theadjusted resolution then appears in the input data with the following databytes D0 to D3:Data bytesInput data D3 D2 D1 D0Value 0x.. 0x.. 0x.. 0x.. |
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