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1775-S4B

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Allen-Bradley 1775-S4B is an optional PLC-3 I/O scanner-message handling module with four I/O channels and an RS-232-C report-generation interface.
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Technical specifications for 1775-S4B

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1775-S4B
  • Product Family:
    PLC-3
  • Product Type:
    PLC-3 I/O Scanner-Message Handling Module
  • Stock:
    1
  • Module Role:
    Optional PLC-3 I/O scanner-message handling module
  • I/O Communication Channels:
    Four
  • Report Interface:
    Channel 5 RS-232-C
  • Compatible Channel 5 Devices:
    Terminals, computers, printers, and modems
  • Report Functions:
    Stored message entry, execution, text formatting, and CRT graphics
  • Message Triggering:
    Data-terminal command or ladder MSG instruction
  • Front Indicators:
    PASS, FAIL, and CH1 through CH4
  • Terminal Swing Arm:
    1775-WA
  • Backplane Current:
    2.7 A at 5 V DC; 2 mA at each ±15 V DC supply
  • Dimensions:
    4.6 × 30 × 39.7 cm
  • I/O Capacity:
    2,048 inputs and 2,048 outputs
  • I/O Communication Rate:
    57.6 or 115.2 kbaud
  • Weight:
    2.08 kg
  • Tariff Code:
    8537109090
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Report Generation I/O Network Replacement Control Application
  • Coordinates PLC-3 I/O scanning while processing stored operator and report messages
  • Allows stored messages to be initiated from a terminal or by ladder MSG instructions
  • Requires the original scanner number, channel assignments, and serial-device configuration to be preserved

1775-S4B is an Allen-Bradley plc-3 i/o scanner-message handling module designed for the documented PLC-3 control platform.

Channel 5 provides the documented RS-232-C interface for report-generation devices. Messages can be stored from a terminal and executed directly or by a ladder MSG instruction.

Before installation or replacement, identify all channel 5 devices and preserve their serial configuration. Back up stored messages and the ladder logic that triggers them.

Availability, condition, price, and shipping time for 1775-S4B are confirmed during quotation.

Allen-Bradley 1775-S4B PLC-3 I/O Scanner-Message Handling Module Manuals, Datasheets, Links

Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

  • Channel 5 provides the documented RS-232-C interface for report-generation devices.
  • Messages can be stored from a terminal and executed directly or by a ladder MSG instruction.
  • Text, process data, and documented CRT graphics can be formatted by the report language.
  • Four separate communication channels support PLC-3 I/O scanning.
  • Each channel indicator reports established communication, a chassis fault, or an inactive path.
  • The 1775-WA terminal swing arm carries the channel 1 through 4 connections.
  • Identify all channel 5 devices and preserve their serial configuration.
  • Back up stored messages and the ladder logic that triggers them.
  • Restore the thumbwheel address and LIST configuration before production use.
  • PLC-3 I/O scanning through four communication channels.
  • RS-232-C report generation to compatible terminals, printers, computers, or modems.
  • PLC-controlled display or printing of stored messages through ladder MSG instructions.
Description
Allen-Bradley 1775-S4B is an optional PLC-3 I/O scanner-message handling module with four I/O channels and an RS-232-C report-generation interface.

Channel 5 connects compatible terminals, computers, printers, or modems for stored report messages, while channels 1 through 4 perform the same I/O scanning function documented for the S4A scanner.

Replacement planning should preserve the report-generation messages, MSG triggers, channel settings, terminal-arm wiring, RS-232-C parameters, thumbwheel address, and PLC-3 application.
Alternative Names
1775-S4B 1775S4B 1775 S4B Allen-Bradley 1775-S4B Allen Bradley 1775-S4B 1775-S4B Message Scanner PLC-3 1775-S4B Scanner
Technical notes
1775-S4B replacement requires matching the optional message-scanner role, thumbwheel and LIST settings, 1775-WA wiring, channel 5 serial equipment, and stored reports; S4A is not functionally equivalent.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Can Allen-Bradley 1775-S4B send stored reports to a printer or operator terminal?
Yes. Channel 5 is the documented RS-232-C report interface for compatible printers, terminals, computers, or modems; the cable, serial settings, stored messages, and triggering method must match the application.
What should be backed up before replacing Allen-Bradley 1775-S4B?
Preserve report messages, MSG instruction use, RS-232-C settings, LIST channel assignments, thumbwheel address, I/O map, and the controller application.
How can the PLC-3 application trigger a report stored in Allen-Bradley 1775-S4B?
The documented report functions can be initiated from a connected data terminal or by a ladder MSG instruction, so the existing trigger logic and message numbers should be recorded before replacement.
What external equipment should be identified before ordering Allen-Bradley 1775-S4B?
Record the connected terminal, computer, printer, or modem, its cable and serial parameters, and how the PLC program triggers stored report messages.
Why might Allen-Bradley 1775-S4B stop producing reports after replacement?
A mismatched channel 5 cable, RS-232-C configuration, stored message set, MSG logic, or scanner address can prevent the report-generation path from working.
What must be preserved when Allen-Bradley 1775-S4B reports include live PLC-3 values?
Preserve the stored message definitions, embedded data references, formatting or CRT-graphics commands, MSG triggers, channel 5 serial parameters, and a verified copy of the controller application.
What could go wrong if Allen-Bradley 1775-S4B is ordered as a substitute for 1775-S4A?
Selecting it as though it were an S4A can remove required programming or backup functions, while selecting an S4A can remove the S4B report-generation interface.