ABB IMSPM01 Serial Port Module – INFI 90

The is a Serial Port Module (SPM) for the INFI 90 Process Control System. It provides a computer interface to modules installed in an INFI 90 Process Control Unit (PCU). The module supports computer-based configuration, tuning, status monitoring and data transfer.

The IMSPM01 connects a computer or Engineering Work Station to the INFI 90 module bus. The SPM can access up to 31 modules connected to the module bus and supports communication between the computer and individual PCU modules.

The computer interface uses full-duplex EIA RS-232C communication. Two serial ports are provided for computer, modem and diagnostic functions. The documented termination hardware includes:

• NTCU01 Termination Unit
• NKTU01 Termination Unit Cable

The connected computer or modem should be powered down before disconnecting the RS-232C cable.

The module uses switches and jumpers for address, serial-port and operating configuration:

• S2: Module address
• S3: Serial-port configuration
• S4: Operating options
• Jumpers: Baud rate and applicable RS-232C handshaking signals

For replacement, the switch and jumper settings should match the original module configuration.

The documented serial-port settings include:

• Baud rate: 300, 1,200, 2,400, 9,600 or 19,200 baud
• Data bits: 7 or 8
• Stop bits: 1 or 2
• Parity: Even, odd or none

The INFI 90 module bus operates at 83.3 Kbaud.

The SPM performs startup checks after initialization or reset, including ROM and RAM tests. For troubleshooting, the manufacturer provides two specific procedures:

• RS-232C Echo Test - Used to check the serial-port communication path
• Module Bus Checkout - Used to check communication between the SPM and modules on the module bus

Field Testing Note: For an IMSPM01 serial communication problem, the manufacturer provides an RS-232C Echo Test as a diagnostic procedure for checking the serial-port interface.

Original-System Compatibility: Designed for the INFI 90 Process Control System and its PCU module-bus architecture.

Historical Replacement: The manufacturer identifies IMSPM01 as a direct functional replacement for Network 90 NSPM01.

Other part numbers should not be treated as compatible replacements without system-level verification.

• Can IMSPM01 be installed or removed while system power is supplied?
  Yes. The manufacturer permits module installation or removal with system power supplied.
• How often should IMSPM01 maintenance be performed?
  Maintenance is recommended every six months or during plant shutdown, whichever occurs first.
• What ESD precautions should be followed when handling IMSPM01?
  Use appropriate ESD-control procedures when handling or servicing the module.
• What information is needed for an IMSPM01 RFQ?
  Please provide Part Number, Quantity, Destination, Required Date, and Machine/System Model.

5CFCRD.4096-04, 5CFCRD.4096-06, 5CFCRD.8192-04, 5DLSD4.1001-00, 5DLSDL.1000-00, 5LS182.6-2, 5LS187.61, 5LS189.6, 5LS189.6-1, 5MP7150.101E-000, 5PC511.SX01-00, 5PC600, 5PC600.E855-02, 5PC600.E855-03

These models are listed as available inventory only and are not official or compatible replacement models for IMSPM01.

Amikon supports industrial automation spare-part requirements with:

• Pre-shipment testing
• Protective packaging
• DOA support
• Return and replacement handling
• Warranty support
• After-sales assistance