Store Loop Errors

Store Loop Maintenance Analysis Procedures
MAP 0100: W001 Message
MAP 0110: W003 Message
MAP 0120: W004 Message
MAP 0130: W005 Message
MAP 0140: W762 Message
MAP 0150: W764 Message
MAP 0160: W772 Message

Store Loop MAPs

The following store loop maintenance analysis procedures (MAPs) were written for the 4680 store system.  Since store loop operation is the same for 4693, 4684, and 4683 terminals, they can be applied to either.

When reviewing these MAPs, the various models of terminals may be interchanged according to the following chart:

4684-XXX may also be 4693-541 
4683-XX1 may also be 4693-421 or 4693-321 
4683-X02 may also be 4693-202 

This section contains information that can be used to learn more about the store loop and its failure modes.

  • The following full-page figures represent a typical store loop, using the IBM loop wiring concentrator.
  • Each figure represents the same store loop, each with the following conditions:

Store loop with an open condition in the top loop wiring concentrator.

Store loop with the primary store controller offline.

Store loop with an open condition in bottom loop wiring concentrator.

Store loop with a failing point-of-sale terminal. 

  • Your store loop may not be wired like this, but the position of your 4683s on the loop and the relationship to the store controller is similar.
  • The 4683-P can also be a 4683-001 or 4683-A01. The 4683-002 can also be a 4683-A02.
  • The terminal numbers are shown in numeric order, but they can be put in any order on your store loop.
  • The store controller transmits data to the first 4683 down-loop on the store loop. This 4683 receives the data and passes it to the next 4683 down-loop. This continues with each 4683 receiving data from the 4683 immediately up-loop from its position, and passing it on to the next 4683 down-loop. The last 4683 down-loop passes the data back to the store controller.

Content created and/or collected by:
Louis F. Ohland, Peter H. Wendt, David L. Beem, William R. Walsh, Tatsuo Sunagawa, Tomáš Slavotínek, Jim Shorney, Tim N. Clarke, Kevin Bowling, and many others.

Ardent Tool of Capitalism is maintained by Tomáš Slavotínek.
Last update: 08 May 2024 - Changelog | About | Legal & Contact