Device Description - WAGO -I/O-SYSTEM 750 Manual

WAGO-I/O-SYSTEM 750
750-882 Media Redundancy ETHERNET Controller
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Device Description

The programmable Ethernet Medium redundancy fieldbus controller 750-882
(MRC) combines the functionality of a fieldbus controller for connection to the
fieldbus Ethernet and possesses two independent Ethernet interfaces.
This controller can be used for applications in machine and plant construction as
well as in the process industry and building technology.
The two Ethernet interfaces are independent interfaces (no hub or switch). Both
interfaces support Autonegotiation and Auto-MDI (X).
With the DIP switch the last byte of the IP address, as well as the assignment of
the IP address (DHCP, BootP, firm setting) for each Ethernet interface can be
given.
In the fieldbus controller, all input signals from the sensors are combined. After
connecting the fieldbus controller, the fieldbus controller determines which I/O
modules are on the node and creates a local process image from these. Analog
and specialty module data is sent via words and/or bytes; digital data is grouped
bit-by-bit.
The local process image is divided into two data zones containing the data
received and the data to be sent.
The data of the analog modules is mapped first into the process image. The
modules are mapped in the order of their physical position after the controller.
The bits of the digital modules are combined into words and then mapped after
the analog ones in the process image. If the number of digital I/Os is greater than
16 bits, the Fieldbus Controller automatically begins a new word.
According to IEC 61131-3 programming, data processing occurs in the PFC. The
process results can be output directly on sensors/actuators or transmitted via
fieldbus to the higher-order controller.
The fieldbus connection consists of two independent ports (RJ-45).
Both ports support:
• 10BASE-T / 100BASE-TX
• Full / Half duplex
• Autonegotiation
• Auto-MDI(X)
WAGO-I/O-PRO creates application programs that adhere to IEC 61131-3.
CODESYS by 3S (the standard programming system) serves as the basis of
Device Description
Manual
1.5.0
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