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Allen Bradley | PLC-5 | 1785-CH0RAPM | Image

Allen Bradley | PLC-5 | 1785-CH0RAPM | Image Allen Bradley | PLC-5 | 1785-CH0RAPM - Wiring Diagram Image

SKU 2171353  UPC 0799705796607

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The 1785-CH0RAPM is the double remote access paging modem for the PLC 5. A maximum of four modems are supported per system. The modem provides one status LED per communication channel. Its power requirement is 0.6 Amps at 5 Volts DC. It provides two DH+/RIO (Data Highway Plus/Remote Input/Output) interfaces. The 1785-CH0RAPM module weighs 0.1 kilograms. The modem allows the system to be remotely accessed for online programming, uploading/downloading processor and MMI Programs, updating the processor and MMI firmware, monitoring data table values in real-time, and collecting data and checking system status. The modem also allows the control system to forward alarm conditions and system status messages to alphanumeric pagers and cellular phones. Other features of the 1785-CH0RAPM include alarm triggers from binary or integer files, user-defined text messages, multi pager support (up to 16 users), text messages of up to 100 characters, and system diagnostic pages.

The remote access paging modems enable plant managers to avoid unnecessary troubleshooting trips to the plant or field locations. Over 250 alarms with user-defined text messages can be sent to keep plant managers constantly informed of production status and notify them of problem situations. When a problem does occur, the paging modem's full dial-in capabilities can be used to quickly connect to the control system and make the necessary program changes, upload/download new programs, update firmware, or collect data. The products manufactured by Allen-Bradley include PLCs (Programmable Logic Controllers) like the 1785-CH0RAPM, sensors, and software. PLCs are computers specifically designed for controlling plant machinery. PLCs get inputs from plant machinery like drives. The programs running in the PLCs then drive the outputs based on the inputs. The input and output signals can be either analog or digital signals and they can also be used to drive relays.

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