ABB 07AI91 GJR5251600R0202 Analog I/O Module Controller Input Unit

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Intended purpose The analog input module 07 AI 91 is used as a remote module at the CS31 system bus. It has 8 analog input channels with the following features: The channels can be configured in pairs for the connection of the following temperature or voltage sensors: ± 10 V / ± 5 V / ± 500 mV / ± 50 mV 4...20 mA (with external 250 Ω resistor ) Pt100 / Pt1000 with linearization. Thermocouples types J, K and S with linearization. Only electrically isolated sensors may be used. The range of ± 5 V can also be used for measuring 0..20 mA with an additional external 250 Ω resistor.

The configuration of the input channels as well as the setting of the module address are performed with the DIL switches. The 07 AI 91 uses one module address (group number) in the word input range. Each of the 8 channels use 16 bits. The unit is powered with 24 V DC. The CS31 system bus connection is electrically isolated from the rest of the unit. The module offers a number of diagnosis functions (see chapter "Diagnosis and displays"). The diagnosis functions perform a self-calibration for all channels.

This unit reference 07AI91 - GJR5251600R0202 and brand ABB is part of the AC31 range. The 07 AI 91 uses one module address (group number) in the word input range. Each of the 8 channels use 16 bits. The unit is powered with 24 V DC. The CS31 system bus connection is electrically isolated from the rest of the unit. The module offers a number of diagnosis functions.The diagnosis functions perform a self-calibration for all channels. AC800M series module, industrial robot spare parts DSQC series, Bailey INFI 90,800xA, Advant OCS withMaster Software, Advant OCS with MOD 300 software, Freelance - Distributed control system for the process industry Symphony Melody, Satt OCS, Symphony DCI System Six, Harmony / INFI 90, security systems, etc.

All analog input modules perform an internal analog-digital conversion. After the conversion, the analog value is represented with 8 or 12 bits, depending on the resolution. For processing and storing this relevant bits (bits which contain the analog information), a 16-bit word is available. All analog output modules perform an internal digital-analog conversion. The digital value before the conversion (consisting of 8 or 12 relevant bits) is stored in a 16-bit word.

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