7EX770.50-1 B & R Automation
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The B & R Automation 7EX770.50-1 is part of the System 2003 Controllers series and features 4 analog module slots and 8 logical module slots. The controller is equipped with two CAN interfaces supporting a maximum rate of 500 kBit/s and uses a 9-pin DSUB socket for the I/O bus interface. It has a power consumption of 20 watts and an IP20 protection rating.
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Product Description:
The 7EX770.50-1 is an expansion CPU manufactured by B & R Automation for the System 2003 Controllers series. Installed in slot-based racks, it acts as the central processing node that links local I/O slices to an upstream PLC and higher-level networks. Within an automation cell, the unit converts distributed sensor data into deterministic CAN telegrams, allowing motion control, safety functions, or process logic to run in real time without separate fieldbus couplers. This arrangement helps keep control hardware compact while preserving direct communication between rack modules and the host controller.
The unit supports 4 analog module slots for current or voltage transducers and 8 logical module slots for digital or specialty cards, allowing mixed counting, relay, or temperature functions in one rack. It also includes 2 CAN interfaces, so one channel can carry standard controller traffic while the second can be reserved for auxiliary devices. Each interface can be configured up to 500 kBit/s, which suits high-priority PDO exchange on a shared CAN network. When all channels are active, the backplane can source up to 14.5 W to the installed I/O modules, so cabinet power planning must include that load.
Module insertion is limited to slot 1 of the rack, where a status LED shows operating and diagnostic states, and PLC-IF1/IF2 lines are galvanically isolated to reduce common-ground noise. The I/O bus connects through a 9-pin D-Sub socket, while IF1 uses a mating 9-pin plug and IF2 uses a 9-pin receptacle to simplify daisy-chain wiring. On the network layer, the device operates as a CAN I/O slave, responding to master queries with low latency. An enclosure rating of IP20 suits installation in closed cabinets, and the unit's internal power draw remains below 20.0 W to limit heat buildup in densely packed control panels.
Frequently Asked Questions about 7EX770.50-1:
Q: How many analog module slots are available on the 7EX770.50-1 controller?
A: The 7EX770.50-1 controller offers four analog module slots for expansion and integration of analog input or output modules.
Q: How many CAN interfaces are present on the 7EX770.50-1 controller?
A: This unit is equipped with two CAN interfaces for fieldbus communication.
Q: What type of connector is used for the I/O bus interface on the 7EX770.50-1?
A: The I/O bus interface uses a 9-pin DSUB socket for reliable connections to I/O modules.
Q: What is the maximum CAN communication rate supported by the 7EX770.50-1?
A: The 7EX770.50-1 controller has a maximum CAN data rate of 500 kBit/s.
Q: What is the protection type rating for the 7EX770.50-1 controller?
A: This controller features an IP20 protection rating, suitable for environments that are free of moisture and large dust particles.
