In a material processing system comprising a plurality of material processing stations, a base material processing station, and means directing material to be processed serially through said plurality of stations in a given order to said base station;
- the improvement wherein each of said plurality of stations and said base station comprises a separate data and control processor, the material processing system further comprising a communication loop interconnecting the processors of said plurality of stations in said given order to the processor of said base station and interconnecting said processor of said base station to the processor of the first of said plurality of stations;
- each of said processors comprising means for generating an error message concerning said processor's respective station, and each of said processors of said plurality of stations including means for passing said error message generated directly therein to a next succeeding station in said communication loop, wherein each of said processors generates said error message by selecting an appropriate one of a plurality of messages stored in memory locations associated with each said processor, each of said plurality of messages existing simultaneously in a plurality of spoken languages in each of said processors in said memory locations, said processors including means for selecting said error messages in one of said languages;
- and
- said base station including a display, said processor of said base station comprising means for displaying said error message received thereby on said display.