C1110BA Beckhoff
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The Beckhoff C1110BA is a C1 Interface Card equipped with 2 PS/2 SIMM slots and a Western Digital WD90C24 video controller. It features two RS232 serial interfaces, a 4-digit ASCII LED diagnostic display, and draws 3 amps of current during operation. The card supports up to 254 Lightbus modules and uses a Maxell ER3S battery with a voltage of 3.6 V.
Internal Product Review
The C1110BA is a Beckhoff C1 interface card designed for dependable system integration, featuring 2 x RS232 serial interfaces and 1 x Centronics parallel interface. A 4-digit ASCII LED diagnostic display simplifies commissioning, while support for up to 254 Lightbus modules makes the card especially capable in larger control architectures. A strong choice for legacy-compatible communication and scalable Lightbus connectivity.
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Product Description:
The C1110BA is an interface card produced by Beckhoff within the C1 Interface Cards series. Mounted in a controller rack, the board links the S5 bus to Lightbus nodes and to conventional PC-style peripherals, giving an automation system keyboard input, serial communication, parallel printing, and basic video output on a single-slot card. This arrangement reduces backplane slot count and provides a direct path for operator commands, maintenance dialogs, and distributed I/O data to reach the PLC or industrial PC that governs the machine.
Configuration data are stored in a 32 kByte EEPROM, so parameters and user settings survive power cycles. The card draws up to 3 A from the backplane, a figure that must be included in the cabinet power budget. That demand is supplied by 5 V DC via S5 Bus, eliminating the need for auxiliary cables. For field expansion, the Lightbus interface can supervise as many as 254 remote modules, giving deterministic I/O scanning across large installations. Host software can also connect legacy devices through 2 × RS-232 channels, supporting point-to-point links with sensors, modems, or service laptops.
A replaceable Maxell ER3S lithium cell maintains SRAM and the real-time clock at 3.6 V when the cabinet supply is off, preventing configuration loss during lengthy shutdowns. Fault and status codes appear on a front-panel 4-digit ASCII LED display, allowing error numbers to be read without external tools. Process values or boot screens can be shown through a Western Digital WD90C24 graphics controller, which drives a 15-pin VGA port backed by 512 kByte of video RAM. Combined with two PS/2 SIMM slots and an AT-standard keyboard connector, the card supports both local interaction and distributed communication in S5-based automation.
