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General info
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Article number
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3BSE092689R1
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MODBUS TCP is an open industry standard widely spread due to its ease of use. It is a request response protocol and offers services specified by function codes.
MODBUS TCP combines the MODBUS RTU with standard Ethernet and universal networking standard TCP. It is an application-layer messaging protocol, positioned at level 7 of the OSI model. The CI867A/TP867 is used for connection between an AC 800M controller and external Ethernet devices using Modbus TCP protocol.
The CI867 expansion unit contains the CEX-Bus logic, a communication unit and a DC/DC converter that supplies appropriate voltages from the +24 V supply via the CEX-Bus. The Ethernet cable must be connected to the main network through an Ethernet switch.
The CI867A module will only work with System 800xA 6.0.3.3, 6.1.1. and subsequent versions..
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Communication protocol
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MODBUS TCP
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Master or slave
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Master / Slave
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Number of channels
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1 channel
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Transmission speed
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10/100 Mbit/s (Ch1)
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Line redundancy
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No
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Module redundancy
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Yes
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Hot Swap
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Yes
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Used together with HI Controller
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Yes
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